High ltft under load

Author: gylc

August undefined, 2024

WebOct 17, 2024 · Thread: Help diagnose / troubleshoot '10 2.0T 2k rpm surging, High LTFT,engine brake ticking. Thread Tools. Show Printable Version; 09-12-2024 01:52 PM #1. markcm. View Profile ... the rpm will pulse by about 1-200 while holding a steady foot or using cruise control and the car is under a consistent load such as a hill climb. … WebBaselining the fuel trim data is a simple four-step diagnostic process: 1. Connect an OBD II generic scan tool, preferably with recording capabilities. 2. Monitor and record the fuel trim values in the four common operating …

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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 … 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 ... how many pay periods in biweekly

Positive LTFT under load - 2CarPros

WebApr 5, 2024 · There is no such situation as Ltft being wildly out of range and stft being in range as being healthy. The LTFTs should be +/- 2.0, and you get codes at around 11-12%. … 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 … Jan 31, 2024 · how can bahaism help in bringing world peace

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

Using fuel trims and downstream O2s to analyze intermittent …

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 ... WebThe LTFT stored value in memory can be reset using a bi-directional scan tool or on some vehicles by removing the battery power for 15 minutes. LTFT and STFT are percentages which represent the adjustment to the fuel injector pulse width. The LTFT and STFT are added together, so a LTFT of 10% and a STFT of -5% will equal 5%. how can bail be considered unusual and cruelWebLow 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. how can badminton help you manage stress

"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 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) " - High ltft under load

High ltft under load

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WebMar 4, 2024 · 2.) Clamp off the breather line from the valve cover to the air duct that connects the MAF to the throttle body. No change in LTFT. 3.) Photo attached - Clamped off the vacuum line between throttle body and the vapor purge valve. This caused the LTFT to spike up to about 40+ and finally set the P0171 DTC. WebApr 28, 2024 · Then it goes back to mostly normal LTFT under load? If so, that would most likely be a vacuum leak. The tiniest little leak on these cars (especially regarding the PCV system) will send these cars into hysterically lean idle or light cruise conditions. If it's just bad LTFT numbers all the time, then probably not a vacuum leak.

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WebDec 4, 2013 · In addition to these no-load checks, drive the vehicle at various steady load conditions and watch for fuel trim variation. If long-term fuel trim (LTFT) for bank 1 is 25% …

WebSep 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 … 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 …

WebFeb 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 … Web2 days 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 ...

WebFeb 28, 2024 · All 4 O2 sensors and MAF sensor has been changed. There's no vacuum leak per all 5 shops. Please help. I lose power when accelerating, idles high, check engine and Trac off lights are on. You have too much fuel getting into the combustion chamber, typical issues would be. 1. Stuck on fuel injector.

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 … how can bacteria be classifiedWebFeb 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. how can badminton benefits to youWebSep 28, 2024 · New sensor begins reading much sooner, but the high fuel trims at idle persist. On the first trart after clearing the ECU: BEFORE the downstream O2 begins giving output, the truck idles like a champ; it's like a brand new engine. AFTER is when the fuel trims get out of whack and things go to heck. how can baking soda help arthritisWebThere will be upwards of 20-30 different LTFT load cells stored for various speed and load ranges. These will change in scan data as you move the engine through its power ranges. The values will return to normal after repairs are complete. Each load cell has to be used long enough for the STFT to modify the LTFT in that cell. how many payrolls in a year biweeklyWebJan 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 … how can baking reduce stressWebAug 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 … how can baking help mental healthWebJan 5, 2024 · Your actual fuel trim is the sum of ltft and stft, and yours are extremely high. You likely need new sensors, and you have vacuum leaks. I would not count out fuel delivery either. The first minute or so the car is in closed loop as the o2 sensors heat up, so you are not getting adaptation. Ignore the codes. how many pay periods in a year for biweekly