Quote:
Originally Posted by jonbonazza
Thanks for the info. Ill get some logs and get a hold if the tuner then. Im just worried about doing 2nd gear pulls at WOT with the current tune running lean.
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Its hard to tell if you are actually running lean in WOT without seeing a log. WOT and partial throttle are going to have different voltages from the maf so the calibration may just be off on the low end, and not the high end. You have to also realize your car will run in closed loop where it targets a specific afr (should be around 14.5-15AFR) using the oem o2 sensor until the ecu decides it needs to run open loop where it stops using the o2 sensor and just uses its actual maps to calculate how much fuel to add. So the 15 AFR you are seeing during partial throttle can be completely normal until the throttle goes all the way down.