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2006Tahoe2WD
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22006Tahoe2WD replied to the thread My current fuel trims - idle, 2000rpm, 3000rpm all no load.Yesterday (Thursday) I bought 10 gallons of 100 Oct gas at the 76 station here. $10/gallon. This was mixed with about 4 gallons of 87...
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22006Tahoe2WD replied to the thread My current fuel trims - idle, 2000rpm, 3000rpm all no load.Yesterday I tried displaying the Commanded Evaporative Purge and couldn't get it to work. That is a standard listed PID but for some...
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22006Tahoe2WD replied to the thread My current fuel trims - idle, 2000rpm, 3000rpm all no load.I've watched the LT and ST going up a steady incline recently and both seem to behave themselves - no big moves. When running on the...
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22006Tahoe2WD replied to the thread My current fuel trims - idle, 2000rpm, 3000rpm all no load.An additional thought.... You read on the internet that the STFT and LTFT are added to get the actual trim that will be applied. Yes...
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22006Tahoe2WD replied to the thread My current fuel trims - idle, 2000rpm, 3000rpm all no load.I have an idea to potentially relate LTFTs to EVAP flow. I added the commanded purge value to my "dashboard" on my MX+. Haven't tried...
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22006Tahoe2WD replied to the thread My current fuel trims - idle, 2000rpm, 3000rpm all no load.In upper right corner "08/05". I guess that's the mfg date. I could not pull up an OS name using MX+ and OBDLink. It might be there...
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2You have the 4L80 / 4L85E trans I believe. It's a good setup with the 6.0L and can take quite a bit of abuse, but no need to find out...
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2Definitely change the trans fluid if it’s brown.
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2If that trans fluid is not nice and red I'd change it. I'd want to see what's in the bottom of the pan too.
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2Holy parts cannon Batman! As was stated, take this one at a time. And when replacing parts, I highly recommend OEM in nearly 100% of...
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22006Tahoe2WD replied to the thread My current fuel trims - idle, 2000rpm, 3000rpm all no load.Thanks very much for this. I think you must be correct that different models (e.g. flex vs non flex) have different PIDs that show up...
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22006Tahoe2WD replied to the thread My current fuel trims - idle, 2000rpm, 3000rpm all no load.I'm very interested if you are seeing or are able to pull up the PID for ethanol percentage. I would guess since you are flex fuel that...
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22006Tahoe2WD replied to the thread My current fuel trims - idle, 2000rpm, 3000rpm all no load.After more digging the PID hex is 52 (dec 82) for Ethanol Fuel %. Still not sure if that can be pulled via the OBD port on my car. I...
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22006Tahoe2WD replied to the thread My current fuel trims - idle, 2000rpm, 3000rpm all no load.This adds to the thinking that the base map doesn't not assume there is any ethanol in the gas. Therefore, when 10% ethanol is...
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22006Tahoe2WD replied to the thread My current fuel trims - idle, 2000rpm, 3000rpm all no load.All the J1850 VPW PID lists I could find don't contain ethanol percentage. I'm claiming no scanner can read it. It might be there but...
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