High stft at idle

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August undefined, 2024

WebNov 17, 2024 · Even if your STFT's are just a few points positive at idle, it may indicate a leak. Let the car idle and carefully spray short bursts of brake cleaner/carb cleaner around … WebJan 9, 2024 · Restriction on fuel filter or fuel ines will cause lean mixture at higher loads and RPM generally not so much at idle. Low fuel pressure from a bad pump usually affects crank time at cold start but less than 0.5 bar (7psi) drop can have a big effect on fuel trims. " We're trying to plug a hole in the universe, what are you doing ?. "

o2 sensor - Very high short term fuel trim - Motor Vehicle …

WebOct 10, 2024 · Both idle condition and open throttle condition, O2 sensor reports normal conditions. When returning to idle from an open throttle condition, LTFT stays -20% and … WebJun 15, 2024 · From a cold start without touching the gas, as soon as the O2 sensors start reading, the STFT start pulling fuel and adding to the negative LTFT until they get to around -18%. Each time the STFT hits the most negative point, it will reset to 0 causing a bit of idle surge, before going negative, then resetting back to 0, it continues to loop ... organic smartcart oils

Low LTFT, high STFT - Motor Vehicle Maintenance & Repair Stack …

WebAug 24, 2024 · LTFT now ranges between 11% and 20% at idle. It hangs around 10% under revving and 4-7% under load; this has not changed since before the repairs that have been … WebDec 18, 2016 · Load at idle is irrelavent. Except if it's to low when you start the car it will not switch into idle strategy. It'll fire up and idle over 1000 RPMs and it'll be stuck in spark … WebWHAT CAUSES HIGH LTFT - Answered by a verified Chevy Mechanic ... If you notice a change in idle, you've found your leak. Be careful not to spray this stuff around ignition components (distributor, wires, coils, etc) as a spark leak can ignite the spray. ... HI BRAD CARLZ 136 RPM 670-710 /ECT 198/IAC 36/BARO PRE 31/ENG LOAD 3 /IPW 4.6-4.7 /LTFT ... organic smart bud torch lighter

High STFT/LTFT and P0174, P0170, P16A7 - BimmerFest BMW …

Load % too high at idle.... SVTPerformance.com

WebJan 26, 2024 · If there’s a malfunction in the fuel system, the levels of fuel entering the engine can be too high or too low, which would cause a rich or lean scenario. Oxygen … WebJun 15, 2024 · At Idle, short term fuel trim bank 1 is about 10-18%. As I increase throttle to 1500 rpm, then 2500 rpm and higher, short term fuel trims will drop down to ~2 or 3%, … how to use hd skins in minecraft bedrockWebMay 27, 2024 · STFT eventually follows within seconds of the LTFT to being high readings. This consistently starts when car is under light load. Typically around 5 - 7% throttle. ... Idle, Medium load or WOT I have no issues. It seems to be at very light throttle that will send O2 into flat line .9 volt reading first, with fuel trims to follow a few seconds ... how to use hdr on tv

"WebJan 5, 2024 · Since I did this, my ltfts after the initial warming up are 20%ish. They continue to stay that way unless under load which then drop to 5-8%. Oddly, my stfts after warming … " - High stft at idle

High stft at idle

Fuel Trim Data: A Powerful Diagnostic Tool MOTOR

WebNov 22, 2015 · Basically, the O2 stays pegged to zero volts at idle, yet both LTFT and STFT are also zero. Strange, if the sensor is reading that lean, then the STFT should be way up! ... Emissions Problem: Lambda AND CO Slightly High on my 98 Mazda 626. 4. Should the EGR be activated at idle? 8. WebThe fuel trim values will be high at idle and would clean up in higher operating ranges. It’s possible to see slightly elevated fuel trim values at higher operating ranges on MAF sensor-equipped vehicles, but this would …

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WebJul 10, 2024 · If the STFT rises higher than plus 15-20% at idle, but drops at higher rpms, most likely you have a vacuum leak. If the STFT is close to zero at idle, but elevates to 15 … WebDec 20, 2024 · High STFT At Idle. Hey Guys, Having some issues with my tune right now and after a few revisions with my tuner the fuel trims at idle are still pretty high (15-20%). Looking for suggestions. FBM turbo kit. I have looked over all the intake piping and cannot find a leak. Manifold pressure at idle is around 0.32 bar, vacuum at idle is -19 mm/Hg ...

WebAug 25, 2024 · If FTs are high then it is running lean (system is adding fuel) - too much air (vac leak) or not enough fuel (low RFP). To me high idle would certainly indicate the former. Paul. 2005 ZX4 SE 2.0L Duratec 5-speed 197K miles. 2002 Wagon SE 2.0L Zetec 5-speed 145K miles (scrapped) J. WebFuel trim should be checked at idle, 1500 rpm and 2500 rpm. In this case, STFT at idle was approximately 223% and LTFT was 24%, for a total fuel trim calculation of 227%. No matter how long the vehicle idled, LTFT never went above 24%. In this case, STFT carried a greater weight than LTFT.

WebApr 4, 2024 · I checked the STFT's at idle with the foot off the brake and they appeared to be normal. When I pressed on the brakes, the STFT's went up, and if I pumped the brakes, the …

WebSep 19, 2012 · STFT at idle going to +50%. I've been trying to get my tune worked out for the past 4 days, and I am close to the point of just blowing my car up because it's pissing me …

WebJul 10, 2024 · If the STFT rises higher than plus 15-20% at idle, but drops at higher rpms, most likely you have a vacuum leak. If the STFT is close to zero at idle, but elevates to 15-20% at higher rpms, the problem could be caused a faulty mass air flow sensor, clogged catalytic converter or low fuel pressure (bad fuel pump). organic smartcart hurkle cartridgeWebAug 11, 2024 · The STFT varies between -4 and +6 LTFT is at 14.8% at idle will go to 25-27 at 2000 RPM. Slightly hard to start and diesels a bit at shut off Idles at 900 RPM with or … organic smart carts reviewWebJun 30, 2024 · STFT was at 4% MAF 2.8 warm 3.8 cold changed oil, and replaced homemade CAI with stock air box and replaced in-cabin air filter STFT shot up to 27.3% … organic smallholding for saleWebJul 3, 2016 · Started seeing what the trims were before messing with the VE. STFT trims were still at +50 , pretty much worked the entire VE and multiplied by 1.20 , trims got better to +18 so I multiplied by another 1.15 and got them to +5 on one bank and 0 on the other. Truck turned on great and idled way better. organic smartcart thc cartridgeWebJun 30, 2024 · STFT was at 4% MAF 2.8 warm 3.8 cold changed oil, and replaced homemade CAI with stock air box and replaced in-cabin air filter STFT shot up to 27.3% and LTFT hangs out around 30% immediately after doing above maintenance. Noticed huge hole in upper air boot (I probably made it bigger, when replacing CAI with Stock) how to use hdtv antenna on samsung smart tvWebNov 6, 2024 · Since the intake plenum vacuum pressure is highest at idle, it should also show in the numbers but all 4 fuel trim values are well below +-10% at idle. Yesterday, I got a P2195 code for bank 1 after an engine flush and oil change and some driving, after a 20 minute stop w engine off. how to use hdr on monitorWebJan 5, 2024 · Only to return the next morning with +25 LTFT +0 STFT Ran the tank down to about 1 gallon. Topped off with 91 non oxy again and fuel trims in 6th at 60 dropped to +10. Idle was still +25 ltft and misfire is present. Not sure where else to look here. Fuel pressure on the high and low side looks good. how to use hd video converter factory