Hey everyone,
I'm running into an issue with trying to tune the MAF on my setup but getting bad data from my histogram. This seems to be caused by the engine running lean under decel and very light throttle but I can't figure out what's causing it to go lean to give the bad data. This is causing me to not really be able to effectively tune the MAF.
Also, something that's werid is I'm seeing the fuel trim cell be constantly switching between 21 and 22.... I would think it should stay in 20 (O/L) but I may be mistaken.
To set up to tune the MAF, I:
- Disabled the COT
- Disabled the DFCO by increasing enable temp to 284?
- Disabled LTFT and STFT's (O/L idle only)
- Disabled dynamic air by setting high RPM disable to 100 rpm
- Tried changing a few other DFCO settings to make sure it's disabled
Here's my current tune and a log file of the most recent drive:
10_18 second drive.hpl
LS6 Working Copy - MAFStep6.5 - trying to kill DFCO for good - retry.hpt
If anyone has any ideas that would point me in the right direction let me know! Thanks!