High ltft under load

Author: rsce

August undefined, 2024

WebJan 11, 2016 · Basically the first two lines are LTFT, next two are STFT, then oxygen wideband bank 1 and bank 2 for lambdas and last one is wideband bank 2 current. The … WebApr 11, 2024 · Purchased this MAF sensor for my 2005 Avalanche after pulling a P0101 code. Truck was idling rough, horrible fuel mileage, boggy acceleration and would sputter while under a load, especially uphill. The Oscilloscope measurements on the OLD sensor would bounce from .5lbs/sec to 9lbs/sec at an idle with no load.

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Jan 31, 2024 · WebMay 27, 2024 · High O2 voltage paired with high LTFT reading. What is likely culprit when O2 pegs at .9 volts and stays there indicating engine is rich. Then as this continues for 15 - 30 … cinevision friends

High LTFT but normal STFT Diag - 330ci E46 Fanatics Forum

WebApr 7, 2024 · Pure titanium is widely used in clinical implants, but its bioinert properties (poor strength and mediocre effect on bone healing) limit its use under load-bearing conditions. Modeling on the structure of collagen fibrils and specific nanocrystal plane arrangement of hydroxyapatite in the natural bone, a new type of titanium (Ti) with a … WebFeb 26, 2015 · High trim at idle but not so much at speed is a vacuum leak. Good fuel trims at idle but high while driving is poor fuel delivery. Pump, filter, restricted fuel line. If the pump is weak it may still make spec pressure when their is no load on it, but the engine will go lean when under load driving. I'm not old, I'm ripe - My LS Jeep project Save 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 … diacetyl sds

P0171 on 01 Echo with 19.5+ LTFT from 2 MAFs - Toyota Nation Forum

High positive stft and ltft with no vacume leaks.....help

WebFeb 11, 2015 · Why are the fuel trim numbers high? If LTFT or total fuel trim is greater than plus 10%, the PCM thinks the air/fuel ratio is too lean and it’s adding fuel to bring STFT control to the correct range. This presents three possibilities: Unmeasured air is reaching the combustion chambers. WebSep 16, 2010 · Under load the LTFT values drop to between 5 and 7. I did a quick check for intake leaks by introducing propane (from an unlit torch) around the outside of the intake ducting and manifold and did not notice any change in the STFT values. I will do a detailed check of the intake sometime. Anything else I should be checking? gathermewool cinevision dvd playerWebFeb 11, 2015 · So what I've noticed on the scan gauge is my LTFT at idle is a solid 3.9. But as soon as I push on the accelerator they jump up to 14% while the STFT is right around 0 … cinevision.com.br

"WebDec 16, 2024 · That’s why you might get leaner stft and ltft under load. and it still be a leak between MAF and turbo. these issues are very common place. ... It’s still also possible a dirty MAF sensor. I had perfect 14.7 at light load almost 0 trims but way lean at high load. You didn’t change anything that could effect the volumetric efficiency ... " - High ltft under load

High ltft under load

WebMazda Protege Engine Oxygen Sensor Fuel trim ZEMORZEMOR MEMBER 2000 MAZDA PROTEGE 1.6L 4 CYL 2WD MANUAL 185,000 MILES Fuel trim are high at idle or under load about 15%. What can cause this? At wide open throttle the O2 sensor goes rich all the time which indicates it is not an air fuel problem right? SPONSORED LINKS Do you have the … Web-k&n high flow filter with airbox cover off So using an ELM327 I was just looking around at different pids just so that I can keep an eye on the car, and so when I do get an AP I'm used to the values and my LTFT comes up as +13% at idle, then drops to +2% under higher load and cruising at about +7%.

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WebJan 1, 2024 · Under normal operation, we expect these values to be within 10 percent of zero. While it takes LTFT in excess of plus or minus 25 percent to set a rich or lean Diagnostic Trouble Code ( DTC ) and illuminate the Malfunction Indicator Lamp (MIL), I consider anything in excess of ±10 percent to be a concern that requires investigation. WebApr 10, 2024 · Once I had that the idle temperature rose to 55-69 degrees after starting the system with an open browser on the initial page. After turning it off and on again, it worked properly at a temperature of 30-45 degrees. (browser load). (the laptop was connected to the charger) Please also tell me at what temperature the fans should turn on, and ...

WebAug 27, 2024 · At this point literally nothing I do seems to have any effect on fuel trims, LTFT is at 18% at idle and within +/-10% under any load at all and I can't find any components … WebJun 30, 2024 · LTFT was at 11.4% 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 …

Web1 day ago · Female javelin coach, 26, accused of having sex with a 17-year-old boy on the high school track and field team after 'texting him at 2am and inviting him to her home' - before pair 'had a 17-month ... 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 …

WebUNDER LOAD ( HIGHWAY SPEED) CAL 2.7 ECT 194 MAP15 INHG RPM 2052 SPEED 66 PER SCAN TOOL 71MPH SPEEDO SPARK ADV 38 IAT 79 DEGREES MAF 5.28 LB/MIN TPS 10.2 …

WebJan 31, 2024 · Fuel pressure remains between 52-55.5 psi between Idle and under load. Vacuum leaks were checked for in the following manner. Watching LTFT and STFT and then upstream O2 sensors using propane all along each and every vacuum line as well as IMT valves and idle control valve, brake booster and EVAP canister. cine vision full houseWebLow fuel pressure at idle is relatively easy to explain, sure - say a clogged fuel filter or failing fuel pump. But I don't think a clogged fuel filter would "unclog" itself under load when the demand for fuel is much higher than at idle, neither is a weak fuel pump likely to start working properly when you increase the fuel demand. cinevision germanyWebMar 18, 2024 · positive LTFT on Idle. Have a quick question and wondering on some thoughts. Just swapped a 5.3L in a 91 Jeep for a guy, got it up and running but I have super high fuel trims when idling. (like +25). When I unplug the MAF the LTFTs come to a normal level +/- 5. Swaped out the maf and same thing. he didn't want to put new 02 sensors in so … diacetyl tartaric anhydrideWebA significant increase in STFT and LTFT can be caused by: Unmeasured air is entering the engine due to a vacuum leak (higher fuel trim at idle, but less at higher RPMs) Incorrectly … cinevision flashWebSep 22, 2002 · Once again more air = higher LTFT’s (more fuel) = more power…very simple. It’s “calibrated” (very poor word to use) to the range of flow inherent to the displacement of the engine. The next item was the MAFT. It was never designed to … cine vision hawkeyeWebDec 4, 2024 · LTFT at 2500rpm no load, +%4. Driving under load, LTFT is at most + %2-3 O2 sensor voltage appears correct. Upstream cycles .9 to .1 volts about every 1.5 seconds. … diacetyl reductionWebJun 30, 2024 · LTFT was at 11.4% 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) diaceutics board