Help! Consistent Codes / CEL
17544 - Fuel Trim: Bank 1 (Add): System too Lean
P1136 - 35-00 - -
17546 - Fuel Trim: Bank 2 (Add): System too Lean
P1138 - 35-00 - -
After reading many threads, we checked the manifold, etc for leaks, found none.
Replaced MAF......
Ideas?
If you do the IM gasket, do the hoses of course!
17544 indicates the following possible corrective actions of...
> Perform road test(fuel in engine oil)
> Check fuel pressure regulator and residual pressure
> Check Mass Air Flow(MAF) sensor -G70-
> Check HO2S that's "the letter O"
> Check fuel tank level =>
> Check Evaporative Emissions(EVAP) canister purge regulator valve
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I've had the same two codes for the past 8 months and I still can't find the source. I've checked all the hoses at least 3 times. Changed the fuel filter, the air filter and the MAF. Cleaned the ICV and still can't find it.
I think my next stop is the injector o rings. If you have any luck finding your source, please let me know.
Thanks
Scott


