Quote:
Originally Posted by Zeuseidon
**Disclaimer** I tried searching on the forum and Google. Didn't find this series of events but Found some helpful info about how to read data logs. And have had the OFT diagnostics up and everything "seemed" okay from what I could catch.
Threw code P219A today:
Okay ladies and gents here's the Low down. Been running OFT Stage 2 with Gruppe-S UEL, JDL ultra quiet highflow front pipe, and Corsa Catback for about 3 months.
Just added Perrin Inlet tube and a freshly oiled K&N air filter. 300miles later threw CEL P219A: Bank 1 Air Fuel-Ratio Imbalance.
Checked the sensor, and seals, everything looks to be good. Anyone run into this, or have some suggestions? I have a 3rd gear/4th gear pull recorded but won't be able to load it until Sunday most likely.
|
P219A is AFR imbalance ie the ecu is not getting the afr its askiung for.
check your long term fuel trims LTFT with your oft
also log AFR and Commanded AFR
ltft should be below about 8%
afr and commanded afr should follow each other fairly well during accereration
you likely have air leak or over oiled filer and oil got on maf sensor. you can get maf cleaner from auto shop
or you have developed an exhaust leak near or before o2 sensors, did you use new gaskets on header