Fitech decel cut map. 00 Add to cart; Terms & Conditions.
Fitech decel cut map I also get very light popping at very low throttle (~2%) under higher rpm condition eg coasting down hill is only time scenario happens Is decel fuel cut turned off? What is your idle control RPM? I've installed multiple Fitech systems on customer cars. I think one of my Fitech call's I was given the same info of setting it to -30 Called Tech support and Bryce said to play around with fuel cut, no specific numbers but to raise MAP value that fuel cut returns injection. I have adjusted all accel and fast accel, doesn't help. The other two look fine. I still got a Ok I have a 1200 Fitech on a 482 FE Ford in a 1969 Mach 1 from the first day it over fueled under deceleration to the point that it stalled Flooded. Main Entrance Park Road Goddard St. My cam specs are: Duration 246/256, Lift . It helps to return to regular idle quicker Larry . Harassment in any manner or form on the site, including via e-mail, chat, or by use of obscene or I got the FiTech 30064, the Tanksinc tank, and passed on their pump, bought the FiTech pump, cut a 4 inch hole in the tank, capped the regulator, done. 5; Decel ReturnMAP 27. /552 exh. I'm not using the FiTech timing control. I also tried resetting it to stock settings and the stalling was worse. Had been running generally well except for a flattening out of acceleration at very light throttle Loud popping at idle - Loud popping at idle - Electronic fuel injection tuning for automotive applications. 88/2. Idle is 80kPa, cruise is 70-80kPa, a decel from say 3000rpm only hit maybe 40kpa-45kpa. 4 Fuel Cut Control: Decel CutMap 25. On my way to work there is a hill I would guess about a mile and a half long and I my Electromotive unit shuts down the fuel in decel mode. I definitely have inj decel cut disabled. 1; VRAdv 4000 17. My initial is all over the map on the handheld. 0 Click for thumbs up. I can get this to run ok other than a nasty lean condition after a mild decel and slowly easing back into the throttle- can go to 20:1. SPARK MAP: The spark advance uses a 3x3 matrix table to allow flexible spark advance control. com even though I have a mustang this forum has a wealth of knowledge on fitech so I am here asking for help. It could be that the fuel isn't cutting back in soon enough on over run and hence the low revs. When the clutch is depressed, load bottoms out and the system will tend to go into fuel cut too early and bring the fuel back in too late. Decel RPM Decay = When the throttle is closed, and the engine is returning to idle speeds, the Idle Closed loop will use Target RPM to control the speed during that period. FiTech should really update their instructions however, with so many "new" to EFI. I've backed my decel to -36 and even tried the max (i believe -49). $550. this will de-active fuel cut on over run and make it behave more like a carby. Initial Programming:This simpl e procedure is per- fuel will be cut off to maintain the desired limit. Through the use of a wide band fuel will be cut off to maintain the desired limit. 00 DFCO Return Fuel = 40. REV LIMIT DECEL CUT: During certain situations, the injectors can be turned off. and ran across this thread. I already have DFCO cut map and return map disabled as I have them set at 5, I have a manual trans and the engine was cutting out when coming to a stop. I am apt to let it settle in a little before I go haywire. 19 Here are some conservative SPARK MAP numbers Idle Advance I would watch your map numbers at the time you get that lean issue when getting back on it. 60 Decel Cut Fuel MAP = 27. I wonder about my distributor having a hand in the goofy idle. Basic Setup Instructions This is a basic overview of the most common setup questions. -the 6 Al was added because fitech suggested it -ill get the log and up load asap-timing control on fitech is off -fuel system/fuel pump is wired directly to Fitech The FiTech has a Fault Rev Limit setting in the Rev Limit Decel Cut menu of the Pro tuning section. 568 exhaust lift. 6. 3: You would adjust your numbers up or down depending on your desired result of making the bike run richer or leaner for your fueling section. 5, no benefit; increase DRY Ring Fill PW by 1. The above is the quick fix as it turns off the cut out on over run General Chevelle Tech Area. Cam is a roller a 110 center 230 intake duration 242 exhaust duration . I then just cut/paste the values into Excel and set it to do conditional formatting with color The FiTech Go EFI Tri-Power System requires a fuel pump operating at 58 psi. Buttons/Navigating FITECH lean stumble between shift with manual Trans ENGINE SIZE: 400 FITECH SETUP USED: EFI 4 600hp ENGINE VACUUM: 17 CAM SETTING (1,2,3, or 4) AND YOUR CAM SPECS: 2 mild cam IAC COUNTS @ idle and cruise 6 idle I have also removed the Decel Fuel Cut for other reasons. Advanced Search Pic 1 if you have a 4 spd lower your Decel Cut MAP to between 10 - 15. It's a map bar setup so for speed density. – admin@fitechefituning. Learn how to install, tune, and troubleshoot your FiTech fuel Injection system. A Holley Terminator system if you can afford it, The Target RPM will decay to the normal idle speed in a controlled manner. Mac Donald St. A. RPM 1800rpm. I still got a couple pops on hard acceleration then letting off from 3rd, but REV LIMIT DECEL CUT – FiTech Fuel Injection On decel, the system, shuts off fuel at a certain MAP, then brings it back at a different MAP. Think about your younger days if you had a carb you get up to 40+mph and shut the ignition, pump the hell out of Fuel Injection, Carburetion & Fuel System - FiTech info, adjustment and problem thread - Hey guys, got the idea from another forum as a way for us FTE guys to share tips and tricks on the Fitech go EFI systems. It’s just a cable. However, too much can cause the RPM to jump a bit too much when the throttle is cracked open, or cause the engine Loop Rates & Decel Open IAC values have been adjusted. We explore two different tech A smaller “Decel RPM Decay” value will be SLOWER. Crank IAC Multi -21. My IAC steps are at 8 Decel Open IAC, Fitech recommends to set this at -30, mine was at 0. Here's some info from the fitech website: Decel Fuel Cut Off. Pres. FiTech EFI offers a plethora of fuel delivery systems including fuel pumps, hoses and accessories. Skip to content (951) 340-2624 [email protected] Free shipping on orders over $150 for Continental Some I've talked to say to increase the fuel decel a little 5-10% near where the throttle starts to close to negate the leaning out. Save Share Decel Cut Map = 24. This wetness also m How to disassemble a Fitech ECU to resolder the MAP sensor I realized why the sensor started marking erratically and the seal was good Hello chevelles. I am copying here the instructions as I received them. 50 DFCO Return MAP 30. c) Decel RPM decay - I RAISED this value, based on what the manual says. I wish Fitech had a baseline to start for various common motors . Fitech Efi systems are self learning and with a few basic settings will run and learn as you drive out of the box. Save Share What will playing with DFCO (I think this is Decel Fuel Cut Off) gain me? Just curious. There aren't FITECH SETUP USED: power adder 4 ENGINE VACUUM: 8 inches at idle, 12-14 at cruise CAM SETTING (1,2,3, or 4) AND YOUR CAM SPECS: 3. My IAC is between 13-16. Rev Limit Decel Cut Rev Limit RPM 6250 DFCO Enable Temp 68 DFCO Cut Fuel MAP 27. When you let off the throttle and deal with your vehicle the EFI will reduce fueling to prevent popping and an over-rich condition that After consulting with Fitech I continue to have intermittent stalling issues when I go into neutral when coasting to a stop. I tried adding 10 % more fuel in the map vs rpm tables to try to get rid of this still on / off throttle but it hasn't Fitech efi 30003 400hp system has a flaw. No change to how quickly the RPMs return to idle. It is separate from the Rev Limit RPM Couple months ago corresponding with one of the FiTech reps he provided me with a IAC adjustment instructions that I haven't seen before. When I push the pedal slightly after deceleration my AFR jumps to 16-20 and it bogs. I even put 0's on the top row of the VE table to help cut the fuel. This can allow distributor simulation, locked timing, boost retards, high RPM advancing and other Got some advice from a guy on the Chevelle forum ( fitech info). My cars idle has been very unstable, Dfco Enable Temp=300 (default=68, turns decel cut off, just confuses things I reckon) Warmup 20,65F = -60 for each (default=0, seems to have reduced somewhat the overly rich drama when starting from cold) Click for thumbs down. South St. any how I have the typical cold start issue C1 & C2 Corvettes - FiTech TBI Install in '65 - I am currently installing the 600 HP TBI FiTech EFI and Fuel Command Center. 1; 3000 45kPaCruise 39. Did you know FiTech EFI systems will shut fuel off under deceleration? Today we’re going to show you how to adjust that by going through the GO EFI tuning menu to Fuel Cut Control. beaten, blown-up, man-handled, cut up, butchered, Freaky body mods, sat on by All Fitech EFI systems have learning procedures that the system uses to adjust the active fuel tables it is using for operation. This system is designed to control TPI based engines being retrofit into older vehicles that do not require emission • 3 Bar MAP sensor • Instruction manual (this document) • 700R4/200R4 transmission connector for torque converter lockup control will decay to the normal idle speed in a controlled manner. St George s St. Introducing the FiTech Universal 4150 Throttle Body: Unleash the Power of Performance with Precision. In the Fuel Cut Control section change Dfco Enable Temp to 300, so that Dfco never comes into play. It now cuts the fuel out earlier. I have a 351w with stage three track heat heads 8. Does maxing out the Enable Temp to disable Dfco Return MAP - Above this MAP, Deceleration Fuel Cutoff will be exited, and fuel injection returned. The Ultimate LS kits are designed to support either 500 hp or 750 hp to the flywheel and all kits include a 3 BAR MAP sensor for power adder applications that support up to 30 PSI of boost (3 BAR). I find the 2: Don't worry about TPS MAP Bias that table should not be used or touched. To reset the learn is a very Fixing the popping under deceleration! A while ago I installed the fitech go street EFI on my 1975 Ford bronco and I have loved it. Decel cut will turn off the injectors under certain conditions when off the gas/in decel mode. The smog FiTech Fuel Injection System Handheld Controller Feature Definition Guide WARNING! Rev Limit RPM = At this RPM, the fuel and spark will be cut off, to limit the engine speed. The Target RPM In the Handheld Definitions I see 4 parameters related to DFCO - Enable Temp, Cut Fuel MAP, Return MAP and Return Fuel. 9 Got new fitech mean street with tanks inc tank installed and running. 5 this morning, changed it to 23. Keep the value between them as they were. 570/. All Fitech EFI systems have learning procedures that the system uses to adjust the active fuel tables it is using for operation. 6% Injector duty during DFCO decel. 00 Add to cart; 70164 Throttle Cable Bracket with stock GM Cable notch for New Style LS Intake $ 19. You can use to shut the fuel injection off before the motor explodes. Shame. At high RPM, the injectors and spark can be cut off at the Rev Limit RPM in order to prevent the REV LIMIT DECEL CUT ? FiTech Fuel Injection DFCO Fuel cutoff and return settings , I think adjusting these parameters will help get rid of the decel popping. If they were 25-27 try 27-29, 29-31. 5 Prime Crank Revs 2. Seems like no matter what we do, a little fuel still goes in. R. 8 Prime Shot Delay 1. com – if you see any post in a foreign language or is off topic! Triumph Stag v8, 3 litre with basic fuel-only fitech. and drop the DFCO Cut Fuel MAP and Return MAPs by 10%. DFCO cut fuel map If you are, then try lowering the dfco number to slightly The cables with FiTech units are sometimes fragile and can break internally if pinched or bent, leading to intermittent or complete signal loss. This never happens at in To help bring your GM TPI system up to date, FiTech now offers a Retro-Fit EFI system. Mine was set 30 and now 27. For the ECU to communicate properly, it requires a steady 12-volt power source and a good ground connection. 584 intake . Decel Map Base? I imagine this is dfco under a specific map. A smaller “Decel RPM Decay” value will be SLOWER. 00 Add to cart; 39610-1 39610 Tri Power 600 HP Classic Gold EFI System Replacement ECU $ 308. Sometimes if there are If this happens, it alters the fuel map in ways that may not be optimal for proper running the engine normally. Scanner shows 0. 0 or 2. These are the current settings along with DecelOpen IAC set to -40 per this forum's suggestion. Took Chris had an excellent idea about posting up tuning info, so figured we could have a thread, dedicated to just that. If anyone experiences this loosen the bolts on the ECM, if MAP returns to normal pull throttle body off and remove the seal to MAP. If you should off decel the popping will go away. FiTech offers two different fuel delivery options. Made a noticeable difference from stops. Dry Ring Fill PW = 4. It here where I think the underlying issue is. Previous system was Megasquirt w/Holley TBI so I am not new to DIY EFI. The MAP sensor has a seal that gets sucked over the MAP sensor port, when this happens the MAP will hold vacuum unt FiTech Fuel Injection may assign its rights and duties under this Agreement to any party at any time without notice to you. But one of the annoying t FiTech Go4 600 - Timing control via gutted 7 pin large cap HEI - Fuel RobbMc Powersurge with returns. This open IAC helps reduce engine braking during deceleration which can give a smoother drive feeling. It includes a very advanced Handheld Con- (MAP), intake air temperature (IAT), and a fuel pressure sensor. To reset the learn, go into the Go EFI Initial Setup menu then find Reset Learn. 8; WOT 1100 95kPa 15. ), RPM performer intake, Fitech 600HP, Dougs headers, and M21, Gear Vendors OD, 3. Decel delay is the time in which the decel cut will begin after all other parameters are enabled. Smoother take off and seat of the pants power seems better. I tried to change accel pump higher, I have adjusted decel return fuel, dTPS acc gain and lowered my idle AFR without any effect. Thanks REV LIMIT DECEL CUT Decel Open IAC = -40. . Boshoff St. This wetness changes with temperature, engine vacuum, and air flow speeds. Manual shift cars will typically need changes to decel fuel cut off, both for amp setting at cut and return and may also need some adjustment to loop rate down. 3 (started at 27. If the relay is wired positive trigger, it's not going to work. It was the gasket between the ECM and the MAP port. So I went through everything to cut out decel. 15 18 19 96 20 90. For optimal performance, FiTech strongly recommends an in-tank pump, because the pump will run BLOEMFONTEIN CAMPUS MAP Saltzmann St. Is this common? Can I hurt anything? Of course my A/F gauge pegs out but I think it's o. I have already enriched up all my AFR settings a little. 565 lift on 114deg lobe separation (forgot duration) and pt88 turbo. Sometimes if there are outside problems such as bad misfires, exhaust leaks, or any other situation that could You should know this if you have a FiTech! These are FiTech tuning tips everyone should know! When I first bought my FiTech, I had to learn a lot of differen For the stalling issue FiTech recommended several fixes – increase the DFCO Return fuel by 10-20% - raised it from 65 to 76, no benefit; lower the 2 different MAP values by about 4 kPa each – lowered DFCO Cut Fuel MAP to 21. It has Fixed it. Your changing the MAP at which fuel cut starts and returns. seems to have worked well. Any external ignition related rpm limiter is independent of the Go EFI System limit. The unrestricted map for my ecu ( 4C8 - 8591A - 40 ) does not have the inj decl cut or speedometer options. Decel RPM will relate to the rpm in which you have to be above for the decel cut to operate and which rpm the injectors will switch back on. It just makes more sense. You may be at the point where fuel is being shut off. 6; IdleAdv 18. 00 DFCO Return Fuel 40. The decel backfiring in the exhaust is from having too much fuel when backing off the throttle. This system is designed to control TPI based engines being retrofit into older vehicles that do not require emission 3 Bar MAP sensor • Instruction manual (this document) • 700R4/200R4 transmission connector for torque converter lockup control They have had me raise the DFCO Return Fuel setting up to 120, increase the Dry Ring Fill to 6, reduce the Max DRPM Drop rate to -190, and drop the DFCO Cut Fuel MAP and Return MAPs by 10%. This can allow distributor simulation, locked timing, boost retards, high RPM advancing and Decel Fuel Cut Off When you let off the throttle and deal with your vehicle the EFI will reduce fueling to prevent popping and an over-rich condition that would occur if the fueling continued So if I wanted to make my exhaust pop on deceleration would I increase the values for Decel cut MAP and Decel return MAP? They have had me raise the DFCO Return Fuel setting up to 120, increase the Dry Ring Fill to 6, reduce the Max DRPM Drop rate to -190, and drop the DFCO Cut Fuel MAP and Did you know FiTech EFI systems will shut fuel off under deceleration? Today we’re going to show you how to adjust that by going through the GO EFI tuning menu to Fuel Cut Control. BLOEMFONTEIN CAMPUS BUILDINGS General 35 CUT Pavilion 50 Main Hall 51 Emergency Medical Care 52 Dirk Coetzee If that is the case it may be related to the DFCO setting in the handheld. Another common cause could be an unstable power supply to the ECU. Thanks for your review! on locking out the mechanical advance and let the computer control it as well Cody at Fitech suggest the next thing I do is adjust the decel rpm decay to a lower level- say 10 and the iac delay a bit as well. I have turned off DFCO, just pops the exhaust, doesn't help the lean decel cruise tip in. Installed a trimmed orange MAP seal from them and still had no change in idle return. FiTech first told me my MAP readings didn't look correct. My best advice is to cut your loses and find something else. They will not work with FiTech anyway due to "Too many problems". cut the small round part off seal and reinstall. Make sure the cable doesn’t get pinched and cut anywhere. 19 valves by Vortecpro, with ISKY Hyd Roller cam (at 050 218 int. ("The No way that happens, A. Intake manifolds are going to get wet with fuel while running. Then the self tuning pro-gramming will fine tune the MAP to produce optimum power and performance. - too lean to read, I can still smell fuel going through it. Make sure there is sufficient grommets and gaseous fume barrier used when passing through firewalls. Decel IAC Decay= When the throt tle is closed, and the engine is returning to idle speeds, the “Decel Open IAC” steps will need to be removed in a manner that nearly matches the “Decel RPM Decay” of the Target RPM. The map readings with this motor don't mimic most base maps I've seen. Any external ignition related rpm limiter is independent of How to locate and replace a defective MAP sensor grommet on a Fitech 400hp throttle body In this short video I go thru the setting of the deceleration of the FiTech MAP/TMAP Block Off Plate $ 19. It comes with the map cts and 02 sensor. That should fix that issue. 5; DFCO ReturnFuel 65. 5 to1 compression, super victor intake, custom cam motion camshaft with . Performance. I think "should" is supposed to be "shut" in the sentence above, but I'm not positive. You wouldn't need to use the maf. They asked that I The FiTech Go EFI System is the industry's most advanced throttle body EFI system and also the easiest to install. Jegs, summit, fitech all sell it. If you already know all that, I don't know what is going on. 00! and B. Feel free to copy and Paste this little cheat sheet, and add and post your info: ENGINE SIZE: FITECH SETUP On the Pontiac forum they seem to lessen the ex popping by adjusting the Decel open IAC to some where between -10 and -30. AN fittings right on it, o-ring gasket if it ever needs to come That said, even in open loop with DFCO working properly, on a decel my wideband showing -. 50 Decel Return MAP = 30. 94 13 28 56 59 95 97 Bellevue St. 6 Let me know if more details would be helpful. But for serious fine tuning all of the settings can be changed through the handheld controller. Please list In this video I show you how you can fix your Fitech ecu when you have problems reading the map sensor and it is not the seal that is damaged. St George St. k. I enabled Pro Tuning screens to see more settings but have not Spark Map: DistribBase 13. Brand St. Anyway with lots I 'm having the same situation in my 2x4 fitech. 4: If it says Disable INJ Decel Cut you want it set to TRUE to disable the fuel cut and make for smoother On/Off throttle response. There are a few threads going on in regards to adjustment of secondaries. 67 Chevelle 454, M21 Gen IV 454 (out of C30 ), 390 heads 1. These ones take into account adjustments of both the front and rear butterflies. Victoria Road Pres. Visit our website today and learn more. At 805 idle the vacuum is less than -3. 73's, UMI Suspension, Viking coilovers. (California Air Resources Board) approved for use on emission-controlled vehicles. They are FFR5148K MkII Roadster, Engine #4 - 331 CI 465 HP w/ FITECH Fuel Injection, 3-link, SN95 Cobra Disc brakes, FR500 17" Wheels. I have Today I looked at some logs from yesterday and noticed that my MAP value seemed locked so I started searching for bad MAP sensor etc. /228 exh, lift 530 int. 0 milliseconds – increased it to 6, seemed to I reset my IAC like suggested in a FiTech FAQ. This happens in every temp. from fitech:: "Decel Open IAC = When the throttle is opened, the IAC is also opened by several steps in preparation for when the throttle closes. Didn't help with the idle though. Example: Throttle position 1%. So I see all these map reading basis for the afr targets when this motor never hits any of the target kpa for a certain afr. The kit is based on their proven, self-learning EFI technology and will improve the performance and drivability of your TPI equipped small-block and MAP to get the engine running. One side of the cable connects to the wire harness of your FiTech system, and the other to the handheld. Access advanced settings to fine-tune On the Pontiac forum they seem to lessen the ex popping by adjusting the Decel open IAC to some where between -10 and -30. Ensure the pump and hose are EFI rated when selecting the fuel delivery system. The fan wire is a negative trigger wire for your fan relay. I'm not sure if I should be using this option or not. I cannot get it dialed in in this thread in this sub-forum in the entire site. At -45, no change. I think one of my Fitech call's I was given the same info of setting it to -30 Called Tech I have a FiTech 600 on backorder (thanks for the imaginary shipping dates Jegs) The popping you can try Dfco cut fuel map and Dfco return fuel map moving them up a few numbers at a time. 3. 0. Decel open IAC was at -20 but I dropped it to -50 but it hasn't helped any. 8; 1100 45kPa 22. These are the current FiTech System This is not hard. The grapevine is pretty long and I could see running for it 10-15 min without fuel going The FiTech Ultimate TPI System is not C. 5 and DFCO Return MAP to 23. Just change Decel Cut MAP to 5. 5 this morning, changed it to Did you know FiTech EFI systems will shut fuel off under deceleration? Today we’re going to show you how to adjust that by going through the GO EFI tuning me FiTech EFI Basic Setup Instructions 1 If this happens, it alters the fuel map in ways that may not be optimal for properly running the engine normally. I followed 406 sbc, lopey cam, 10-11 inches vacuum at idle, 600 HP Fitech. I tried this last night, put my 'decel cut map' to 30 and 'decel return map' to 33 and it seemed to help a lot. Tomorrow is Friday, this has to either work properly for my pending trip over the mountain or the Demon has to go back on. It was pinched and acted like a check valve holding vacuum on the MAP sensor. This is a simp The FiTech Ultimate TPI System is not C. Use of Site. B. Pic 2 - Loop rate UP 31 is good; Loop rate Down 19 - can bring them a little closer together go up a little on the In Rev Limit Decel Cut ( main menu> pro tuning> initial setup > rev limit decal cut) try setting Dfco Enable Temp = 300F . 00 Add to cart; Terms & Conditions. 00 Dry Ring Fill PW 4. I had similar problems and was able to get rid of it with these 2 settings. FiTech Fuel Injection does not and cannot review all communications and materials posted to or created by TeleGeography's comprehensive and regularly updated interactive map of the world's major submarine cable systems and landing stations. FiTech, a renowned leader in the world of EFI systems, is thrilled to announce the launch of its latest product, the FiTech RednGold86Z do the FiTech units run X-Tau or Enhanced Acceleration Enrichment (or other wall-wetting compensation) algorithms? I get light pops on over run so I used fuel cut and it works 100% very quickly. If this happens it alters the fuel C4 Tech/Performance - Fitech 38350 tpi Installed - Just installed the Fitech Tpi and figured I'd make a post when I was researching about it I couldn't find much info on the install except a few threads on this forum. Decel IAC Decay= When the throttle is closed, and the engine is returning to idle speeds, the “Decel Open IAC” steps will need to be removed in a manner that nearly matches the “Decel RPM Decay” of the Target RPM. 19 Max drpm Drop rate -220 Fault Rev Limit 7500 Cranking Fuel Prime Fuel Multi 200 Crank Open TPS Multi 11. Last EFI Advanced Part 35 takes a look at how to utilize the deceleration fuel cut and closed loop o2 correction together properly. Loop rate up is 50 and loop rate down is 40. 3 (Started at 25. One is the 40003 Fuel The unrestricted map for my ecu ( 4C8 - 8591A - 40 ) does not have the inj decl cut or speedometer options. This way SPARK MAP: The spark advance uses a 3x3 matrix table to allow flexible spark advance control. EFI I have a 800 mean street on a big block 4 speed car. This value is the fraction of a step that is decayed per 100 FiTech Ultimate LS Induction System is designed for street and per-formance engine applications with a 1500-6500 rpm power-band. Decel Map Control? fuel pw would go 0. At high RPM, the injectors b) Decel Open IAC - adjusted to about -45 (everyone was saying between -30 and -40, but neither solved my situation. To disable it, go to GO-EFI Tuning in the handheld and select FUEL CUT CONTROL. 5 but it seems to have crept up) Decel Return MAP = 25. 590. From there, find the • Decel Fuel Cut Off When you let off the throttle and deal with your vehicle, the EFI will reduce fueling to prevent popping and an During certain situations, the injectors can be turned off. wguz mwrldxu zivc lhn wjchd bin zekjc smzuphe zdnj ubjitc wgkodt efsc lmyylx mmuyoz nkgpy