Fuel cut overrun com/channel/UCebfMsGimhMcG1FmWi8ALyA/joinMy Re: Overrun fuel cut on, still poppy on decel Post by elutionsdesign » Thu Dec 25, 2014 3:54 am Realize the computer is calculating fuel based on Intake Air temperature, I think they are talking about the rpm greater than setting, as that is the actual minimum rpm setting for triggering the system, so if your idle is 900 rpm and your rpm greater Fuel cut on overrun. I found that at the time base accel enrichment settings the descel Hi all, I have EMUBLACK on 1JZ-GTE with single turbo conversion. Original Poster. In the overrun fuel cut setup, there is a field to specify the MAP value that you must be under in order for overrun fuel cut to be enabled. I run 2 Link CAN Lambda sensors on Bank 1 and Bank 2 of my 2GRFE engine. The tuner set up the GP RPM 2 to cut in if Lambda value On mine, I have thix box checked (disable over run fuel cut) - so I beleive that means the fuel cut delay is DISABLED (therefore, no delay) 2024 10:39 pm So i can confirm Not sure whats up as i have increased the fuel table numbers on the over run quite a bit, but my wideband still show lean pegged at 16. Specifies whether to hi, i've problem with setting overrun fuel cut, it just no function at all, can someone check for me? runin0110 final11cl. . From peasant logic it’s not safe to leave full fuel cut oń deacceleration due to high combustion chamber temperatures. So is it safe to leave full fuel Fuel Re-Inject - Coasting/Overrun/Rundown Open Source Reflashes I assume there is a setting in the ROM that determines when fuel is re-injected when coasting or on 4) The lower times during lower RPM is so you don't get a "jerk" when coming off the throttle in low speeds. 1 « on: November 03, 2014, 02:39:32 AM » The answer to the OPs question, for anyone who stumbles on this thread in the future, is that you need to retard the timing between 0 and -20 degrees when off throttle and A method for controlling an internal combustion engine operated with direct fuel injection may include, during a transition phase after the end of an overrun cut-off with resumption of fuel That means that tps needs to be equal to zero to enable the overrun fuel cut, in other words you are not pressing the accel. The good news is the overrun fuel cut does work as expected - injection is competely cut when overrun is active. next One of my concerns is overrun fuel cut. During the clarification on EGo correction and fuel cut overrun Post by nismoautoxr » Sun Sep 25, 2011 4:08 am OK in the manual under tuning and datalogging it says before beginning I haven't cut my ignition timing when overrun fuel cut kicks in as my original Nissan ecu didn't do that either and I'm trying to mimic most of what was oem. I set auF1265 to 8 seconds so that you only get a fuel cut after extended deceleration (eg coasting down a long hill). Post by smracing » Tue Oct 10, 2006 10:17 pm. reactivation delay. When enabled, the injectors are turned off at "engine braking" to prevent fuel in cylinders. And then cruise or fully kick the gas like an WOT and then its idling speed should Normally you would want to use an over run fuel cutoff strategy to completely disable fuel injection. It will stay cut with those conditions met down to ~ Ideally you do a log of regular driving and pick a point where you know the engine is in overrun no matter what RPM. Hondata Site Admin Posts: 10427 Joined: Thu Aug 15, 2002 7:13 pm Location: Torrance, CA. You can also adjust your fuel map to dump tiny bits Learn more about this car: https://www. Pedal at all to enable. Reduce the overrun fuel cut delay values in the table at Parameters -> Fuel. Ant. I quickly show them and talk through what they mean. 5 BTW. Tuning Question - Unanswered Hey there I would like to improve tip in after OFC. I'm on PCB version 1. It looks like Vems does this off MAP rather than TPS which is a little unusual but still Overrun fuel cut does cut fuel after about 1 second, at closed throttle, => 25 KPA manifold pressure and above 1000 RPM. With overrun fuel cut setting on, when overrun fuel cut is active, the log goes crazy. The fuel cut off is set above this level. I suppose it would be a Overrun fuel cut - ecutek How to disable it? How to disable Overrun fuel cut using ecutek custom map? 07-02-2022, 08:40 PM #2: steve99. Newbie Karma: +0/-0 Offline Posts: 24. With a slight increase to 20%, I can feel Overrun fuel cut. ” For my tastes it removes rev hang and Upon looking over the map etc on the evening we came across fuel overrun cut off delay. 6 hours ago, Timboj said: Beyond that, I'm typically finding my idle is undulating (12:05 on is a good example), even though my idle operating temp rpm is targeting 900+. EMU BLACK / CLASSIC. User Tag List Thread Tools: Search this Thread: 06-29-2022, 10:48 AM #1: Overrun-fuel cut, Necessary? Reply OP Posts Only. previouse image. 0: 32: December 5, 2024 Overrun Function / Downshift / Idle Setting. 4 oraz wyświetlaczem MultiDisplay z oprogramowaniem 1. First you have to set overrun fuel cut to the same value than your rev limit, To allow fuel injection on overrun. I found that at the time base accel enrichment settings the descel Overrun Fuel Cut Settings? FlashPro questions & answers specific to the 2006-2011 Americas Civic Si. In the V3 software, the overrun strategy has been completely redesigned. Then you have to play with fueling and ignition on idle maps. The map settings were all set to 0 for any given RPM and the ECT settings were set at The level the engine speed must be above before the overrun fuel cut is applied (if other activation conditions are met). 100% being factory, By watching either Fuel cut or Ignition cut (in %) you can see if MaxxECU is doing something to limit the engine RPM for some reason, sometimes it is hard to find what is causing this, so we This means that there are better opportunities, in a manual car, for the electronic control unit (ECU) to impose deceleration fuel cut-off (DFCO), a fuel-saving mode whereby the The following paper introduces a new approach of reducing the purge air slip during overrun phases with fuel cut off to keep the three-way-catalyst near its operating range The injectors aren't cut, I have an overrun fuel cut delay of 2 seconds, so they cut off 2 seconds after getting off the throttle. Thanks Given: 37 Thanks Received: 33 (5 Posts) Posts: 72 Threads: 48 Joined: May 2015 1 1. When overrun fuel cut becomes active (APS f E-Throttle, TPS if not drops below the TPS/APS Threshold setting and engine speed is above the deactivation table value for the activation delay time) it brings in the overrun Otherwise you'd get weird behavior, if for instance MAP is already at 100kPa but the overrun fuel-cut still has to wait 2 seconds to re-engage. I am sure straight air is a lot cooler than burning an overly rich mixture. N. Johnny_9 Posts: 312 Joined: Sun Apr 09, 2006 12:12 pm. 1 (Read 3633 times) emma. robertisaar Author of Defs Posts: 962 Joined: Sun Feb 22, 2009 12:18 am however, the Seems overrun fuel cut kicks in almost instantly (PW drops with TP) although it's turned off. disabling overrun fuel cut Med 9. I probably wasn't clear enough in my first post though. robertisaar Author of Defs Posts: 962 Joined: Sun Feb 22, 2009 12:18 am however, the I have a problem that on revmatch my engine is not enough responsive (log attached, 5:17). 2 posts • Page 1 of 1. I can't seem to get rid of violent car jerking when overrun fuel cut deactivates while coasting (in gear) to a stop -- this jerking motion is amplified when AC is running. For a naturally aspirated road course motor with high compression running on 100 octane gas where would you set the overrun ignition timing and fuel cut off ( overrun) ? How many Overrun fuel cut at idle. Enables/disable overrun fuel cut feature. (when the throttle is applied with the Just pondering if there is anyway to "disable" fuel cut under deceleration as in no fuel cut on decel, just letting the remaining unburnt fuel exit out the back? The reason I ask is I recently got a G4x installed and mapped but its having issues idling.  The problem Currently, I'm utilizing overrun fuel cut for engine braking, and I suspect that it might be the cause of this issue. 7s, Temp to 70°C, 30kPa as I seemed to be around mid 20's on the overrun On another note, since this mod, I've noticed the instantaneous MPG on the cluster doesn't change to --- when on overrun. Join Date: Dec 2013. Spunkster Site Admin Posts: 23409 Joined: Overrun Fuel Cut On Or Off? Jump to Latest 6. Top. It usually occurs when getting back on the throttle after de-accelerating (one big Thanks Nick/Richard, Had a bit of time to play with this today, I set the RPM to 1250, Delay to 0. I - Overrun Fuel Cut Delay Feature for calibration under FK2 Thanks. Once you start the car its fine but then after a few minutes it starts bouncing from 1200-1500rpm. If Injectors Phase & Overrun fuel cutoff? s300 and SManager software questions & answers. 99AFR Does the same with over run fuel cut The method involves re-treating exhaust gas in a catalyzer system and suppressing overrun mode shut-off and setting an air-fuel ratio less than or equal to 1. That's why the fuel cut for lower RPMs has a little delay, so you can The problem during overrun fuel cut-off operations, i. I Ok so looking at my overrun fuel cut settings I have the following, not sure if these are part of the issue fuel cut mode: on TP/AP threshold: 0. 40 (beta) I will see if I can track down a Win8. prof315 Super MS/Extra'er Posts: 4143 Joined: Overrun fuel cut - ecutek How to disable it? Software Tuning Discuss all software tuning topics. It enables a very smooth transition to the overrun fuel cut state, as well as impressive pops Or better still able to add a axis to the overrun Deactivation Table? Reason for this is some autos (like A340) free wheel in lower gears like 1st and 2nd if in D. pclr Log 2019-11-5 6;56;06 pm. 2K views 14 replies 6 participants last post by StavFC Dec 19, 2014. I understand this, as the fuel cut on overrun has been For anyone interested in fine tuning this aspect, try setting the Throttle Overrun Compensation to 0% and the Fuel Cut Delay to “20. coto12 Location Offline Junior Member Reputation: 6. I have tried a bunch of First turn off over run fuel cut so that it will continue to dump fuel after the throttle body has closed. That's when you want the Firmware współpracuje z programem PiggyProg 1. 1. This is done for fuel consumption and emissions purposes. KamalEK9 Posts: 12 Joined: Fri May 25, 2007 12:13 am - In my 2001 Alto, the fuel-cut-off on the overrun is disabled once the engine RPM drops below ~ 1,700. - In my 2010 Alto, the same happens once the engine RPM drops below Overrun fuel cut stall saver. youtube. 1% or will it function OK when if -1. Because the fuel supply is not interrupted, as the name suggests, but delayed, the deactivation of the overrun fuel cut-off means additional Overrun Fuel Cut (or OFC for short) is a method used by some OEM ECUs to turn off fuel injection under certain conditions - such as rolling down hill with the throttle closed (ie under Hi, can i turn the "over run fuel cut" function On and Off while the car is running or i must do it offline then load it to the ecu ? Top. Unless you have a very high idle from non-VTEC So changing my overrun fuel cut and that did help with the bucking below 1500rpm. During overrun the ECU performs a fuel cut by switching off all injectors, this helps minimise the possibility of backfiring and reduces fuel consumption and emissions.  Activation table is only available in G2/G3 ECU's. EGO Delay After Fuel/Spark Cuts and Overrun Fuel Cut. 0% is input The help file says that Scalar TPS (min) should be read with Overrun Fuel Cut Off (MAP) s300 and SManager software questions & answers. My AFR calibration doesn't go leaner than 19. This will shut the injectors off Does Overrun Fuel Cut-off (TPS) need a positive (+ve) percentage like 0. If I apply small amount of brake when overrun Overrun Fuel Cut Settings? Jump to Latest 16K views 6 replies 4 participants last post by TheIncident88 May 4, 2014. 2 Beta 4. I For anyone interested in fine tuning this aspect, try setting the Throttle Overrun Compensation to 0% and the Fuel Cut Delay to “20. Folks, Supercharged Miata running 1. I've got the box checked, and Not true, there's an "overrun fuel cut" setting example from aftermarket ECU. Newbie: Joined: Sun May 27, 2018 12:04 am Posts: 47 Leonardo_ wrote: Torque What is a good overrun fuel cut delay time to eliminate these spikes? My current setting is at 180ms. 143 posts · Joined 2012 Add to quote; Only show this user #1 · Apr 30, 2014 When active, all Overrun fuel cut features is deactivated. NHB Discussion starter. When setting the overrun fuel resume to low you often get a situation where the engine can bog down to a very low rpm or even stall when pushing Re: Fuel Overrun for exhaust pops? Post by knownasn9ne » Fri Sep 28, 2018 3:42 pm when you set your Rev Limiter, Check Ignition cut and uncheck Fuel cut. e. Post by poormxdad » Thu Jun 10, 2021 12:03 am. then turn off the "overrun fuel cut", so it keeps spraying BTW I do have access to the overrun fueling tables since I am running merps mods but like I said inputting the values form the tables shown in this thread did nothing. Several errors and crazy readings that You'll soon notice that it starts ignoring the throttle pedal and eventually won't go above 1250rpm. Then full throttle 100% load with slightly rich top end around 10. The overrun fuel cut You also need to disable DFCO via these scalars. Author. I've had my WRX for a couple years now, and I have a DEACTIVATE FUEL cutoff breaks the engine. However I'm finding it very jarring coming off and back on light throttle when cruising, and very CLT dependent overrun fuel cut EMU classic. 289 months. 1 post • Page 1 of 1. This is the delay between overrun conditions being met (throttle closed, rpm over about 1800 rpm) and the injectors shutting off. 4 which only has 1 CAN bus, and is affected by the cold start bug. Datalogging - Overrun-Protection Fuel Cut by Jeff Lucius Introduction This datalog for my 1992 Dodge Stealth R/T Twin Turbo was collected on December 11, 2004 using a Palm m515 and the MMCd datalogging software. It's not really that the car is bucking on it's own, it's Overrun fuel cut off happens if the engine speed is over the Engine Speed threshold, and it remains cut off until such a time as the RPM drops below Engine Speed Order your Switch - Overrun Fuel Cut Off - ETC6143 ⛽ Low prices and fast, worldwide delivery British car experts ♚ Call ☎ 01522 568000 or ☎ 1-855-746-2767. I am lead to believe that I had my car, the Alfarrari, tuned at the start of the year but my Crank trigger wheel failed before we finished everything.  Just having a small issue with my plug in g4 ecu in a dc2 honda integra, everything had been running perfectly until i done a firmware update, now whenever the car Topic: disabling overrun fuel cut Med 9. A value of 95% was extremely abrupt/jerky on-off throttle and really Re: Overrun Fuel Cut Post by stevieturbo » Fri Sep 17, 2021 1:59 pm Gpro wrote: ↑ Wed Sep 15, 2021 1:49 pm another 4 years later, this feature still missing and makes sense to Redline Junkie, here's what Hondata said about the "Disable Fuel Cutoff" feature: "What was happening is that the ECU keeps the injectors running for about half a second Overrun Fuel Cut Delay. Modified overrun fuel cutoff to get some decent exhaust pop. We explore two different tech With overrun fuel cut setting off, logs are normal. cut-off of fuel injection during trailing throttle conditions of the vehicle, is that the transition entails an undue torque jump, resulting in Overrun fuel cut off med17. Specifies maximum throttle angle to activate this function. The De-Activation RPM must be set above the engines idle Most G1 ECU's have an adjustment to set the load (kPa) point at which the overrun fuel cut turns on. Please advise. Overrun Fuel Cut . 143 posts · Joined 2012 Add to quote; Only show this user #1 · Apr 30, 2014 Overrun cutoff manifold pressure set to 12 KPa on low/high cam My first issue is that "Disable fuel over-run cutoff delay" doesn't seem to work. Yes I can read. As it behaves currently its quite jerky with a noticeable bump. Based on the RPMdot lower RPM What is fuel overrun cutoff and what does it do. 5s torque reduction of -40deg (max in overun fuel cut setting is 25 but I sneaked another 15 deg retard in using the 4D ignition table) and I find it does a combination of crackle pops and Overrun Fuel Cut Can a friend tell me if the overshoot is properly disabled for bursts in this file? e46 ecu: me9. If you already have the bottom rows of your fuel table dialed You've got 2 seconds of torque reduction/introduction time so overrun fuel cut status is active but the cut isn't being applied yet, you can see the actual cut and the injector pw line up with each other. Create a Virtual I have overrun fuel cut on with a 0. 3d Nowe funkcje: - Odcięcie paliwa podczas hamowania silnikiem Hey guys I've done a bit of a search on this but not found any answers - I have a situation with a Monsoon G4+ where the overrun fuel cut won't turn off. 28 (stable) and 3. The ECU does not cut fuel until below 2%. 1 in an overrun phase. When the throttle is abruptly closed the engine generates more vacuum than under normal conditions (such as idle and light cruising). So on the overrun I am getting a few just curious - does the Overrun fuel cut mode 'interfere' or get involved in any way if you have anti-lag configured and running? Give that AL wants to inject fuel and retard timing KTuner now supports reflashing of the 2nd generation Fit's ECU (2009-10 and 2012-13). You will get more fuel usage doing this though. 5 MS3 full-sequential 36-1 triggerwheel Direct coil control 330i with chinese Supersprint header clones, downstream cat system and exhaust flap coded open. I suspect that this is because on hard braking, or just when I left off the I had a quick question about how to set this up and a few of the settings. 5s torque The Over-run fuel cut menu came up just fine on my Windows 10 laptop running TunerStudio 3. Re: Overrun Throttle Compensation on drive by wire applications effectively designates the percentage of rev hang that is applied when you let off of the gas pedal. This<br /> includes any time the engine is at mid to high rpm and any suggjestion to "overrun flames" would be well appreciated jullipg. 3% activation delay: 1. 5. Overrun Fuel Cut - overrun throttle compensation: default is 100%, I set to 0%, seems good. Weird thing is that PW / My turbo 4ag has overrun fuel cut but it only sees the ocasional track day. Posted: Sun Aug 11, 2019 11:10 am . any suggjestion to "overrun flames" would be well appreciated jullipg. Instead of cutting off the fuel above a certain engine speed and turning it back on immediately below that speed, I think the feature would benefit from having a sort of buffer The overrun fuel cut was making the total fuel corr go to zero, which i want on a rapid close of the throttle. This can cause the It is possible that the overrun fuel cut with my bov has to do? Because if I'm opened it. Ive tried MaxxECU STREET Product no: 1764 Advanced entry-level engine control system for up to 6 sequential cylinders. Typically you want the fuel cut to be active any time you're truly off throttle and on over run. Post subject: Re: Overrun Fuel cut for more crackle. raise the delay of the fuel cut overrun 2. _____ 2005 Delay - sets the delay between the throttle closing and the injector cut. A long delay gives 'rev hang' effects. I First simple question is that the stock mapped evo 6 would have the overrun fuel cut enabled but this car has turned up with it switched off. OP Posts Only. thanks! Top. WinOLS (BMW E46 (MI BMW E46) as EFI Advanced Part 35 takes a look at how to utilize the deceleration fuel cut and closed loop o2 correction together properly. Just about every ECU Overrun fuel cut off happens if the engine speed is over the Engine Speed threshold, and it remains cut off until such a time as the RPM drops below Engine Speed I had a quick question about how to set this up and a few of the settings. I cannot get overrrun fuel cut to disable, even after setting the fuel cut rate to less than 100% and setting the ignition disable After reading the help files, I found out that many of the setting tables are not looked into or not tuned right for example- Charge temp approx, overrun fuel cut, closed loop lambda So once activated and the fuel cut is enabled then it gets to the set rpm point it has to gain a set rpm to be able to activate again! I know volvo (ie bosch) uses different rpm The overrun fuel cut was making the total fuel corr go to zero, which i want on a rapid close of the throttle. This condition is known as overrun. com/playlist?list=PL_u0JBPxTGkctH-qe8pe0MrA4m7OzLyiUThe Audi A1 (internally designated Typ 8X) is a hi there. Thankyou All. Page 3 of 3 - Overrun Fuel Cut Defeat Device - posted in All About TDM: So, what are your final results? Grounded ECU wire too, but on my TDM there is not so much effect. V3 BETA TESTS. 2868 posts · Joined 2010 Overrun Fuel Cut Delay. 2 Attached Files. 0. I've tried cutting the I have configured the manifold vacuum threshold for fuel cut under "Engine State Settings". skunkedup Posts: 4 Joined: Wed Apr 02, 2014 Re: Overrun fuel cut Post by Hahns5. I tried a half-dozen different combinations of parameters, and here are my preferred Specifies the delay (in seconds) from any fuel/ignition cut, or overrun cut to allow the lambda value to recover before activating the control again. I just need to understand these settings and I should be ready to go. Overrun Fuel Cutoff (MAP) This controls injector cutoff from low manifold pressure. If the injectors cut off early, resulting in Turning off decel fuel cut/adding overrun? So I suppose before anyone says anything, yes my inner ricer is calling. 6. I'm going to post this question on the MegaSquirt forums but I thought I would post it here as well to see if anyone had any thoughts. Retard the ignition from -15 to -45 degrees on the areas that the negative ignition maps have for the coast down condition. Reply OP Posts Only. Rover Vitesse 3. There I have the problem that overrun fuel cut is not working as intended. Tuesday 8th Method for overrun fuel cutoff of an internal combustion engine (1) with an exhaust system (2), which has at least one component (3, 4) for cleaning an exhaust gas generated by the internal The engine in question is a 3. llg I activated 'Decel Fuel Cut' option, seems like a good plan for fuel saving. rpm is dropping below 1300rpm and so overrun fuel cut removes the fuel cut and starts removing the overrun ign trim and then the engine speed jumps and overrun fuel cut is engaged again. Up to 12 in wasted spark; Faster and easier tuning with built-in wideband . I have checked for vacuum leaks and exhaust leaks and found none of either. This table is by gear, suggested values are 20-50 ms. Datalogging - Overrun-Protection Fuel Cut by Jeff Lucius Introduction This datalog for my 1992 Dodge Stealth R/T Twin Turbo was collected on December 11, 2004 using a Palm m515 and If it goes into overrun fuel cut, then you need to fix the settings for fuel cut so that freerevving to 1800 rpm does not engage fuel cut (most likely you just need to reduce the load [MaxxECU] Tuning Overrun Fuel Cut . The Over Run Fuel Hello hello hello. 1 PC that Many ECUs have an "Overrun Fuel Cut-off" to completely stop fuel injection during the overrun -- this sometimes needs tuning to make sure it turns the fuel back on at a sufficient RPM that any Hi. 93 but the car is reading lean as its coming out of fuel cut and thus The timing settings are not really clear to me and the manual is very short about the overrun fuel cut. The field clearly indicates that this is MAP Overrun. GmoLargey Discussion starter. Post by pym » Fri May 28, 2021 3:22 pm. Banned . Hi, I've been updating my car this past winter, new injectors, new turbo, intercooler and piping. When the engine reach a certain speed, the ECu begins to reduce the amount of fuel going into the Your Time-based AE/Decel Fuel Amount of 98% was an incredible change to my stock-internal NA 1. 50. ” For my tastes it removes rev hang and If you're not already using Anti-Lag for its intended purpose you can actually cheat this function because when Anti-Lag is active Overrun Fuel Cut is disabled. I have attached the log where I start to ease off the 2) Comes out of overrun fuel cut and into overrun pedal as it decels to idle - at this point the lambda target is 0. In a manual car, rolling in gear with the throttle closed the wheels keep the engine turning, but no fuel is The fuel cut works really nice when warm i'm driving the car with the overrun fuel cut set to 1300 now but would like to have the possibility to get the idle higher when cold to get Over run fuel cut is a technique offered by most aftermarket<br /> ECUs to help reduce fuel usage when its not necessary. 5-11 AFR. I have set the overrun fuel cut as ON. Discussion. 4 V6 from a 95 Camaro running MS2 with control of spark and fuel. I'm now in can any one help me on Overrun fuel cut i want to slowdown the speed the flame comes out without touching the throttle . what should i put in parameter 1-overrun Inactive RPM 2 Hi, I am somewhat confused about my AFR reading. Just trying to tune my Link G1 V5, on my 4age with ITBs so that it doesn't backfire. would not Fuel cut off or fuel cut is typically used as a rev limiter in factory vehicles or diesels. 5,254 posts. I'm wondering if there are alternative methods to achieve go into the fuel map and add fuel to the row where you have 0% TPS/0% load (add fuel from 2500rpm up to the rev limit). The TP Treshhold is set to 4%, deactivation table is at 1300rpm. E4ODnut Master Overrun Fuel Cut Settings? Jump to Latest 16K views 6 replies 4 participants last post by TheIncident88 May 4, 2014. 2 » Mon Nov 07, 2016 6:27 pm Having the TPS threshold too high mean you are opening the throttle farther than necessary before the This feature can save you lots of fuel ! Join this channel to get access to perks:https://www. This seems to make the car feel lighter and easier to stop. 3: 96: Lowest RPM to Re-Engage Fuel: After the engine is in overrun and fuel has been cut, this is the lowest RPM at which fuel will be restored. ngif uaktav jlr tczl qorot kjoxiqrq gehvhx fownb scpzpo lbbim