P0171 Fuel System Too Lean (Bank 1)

DTC P0107, P0108, P0135, P0137, P0138, P0141, P1128, P1129 and P1259 not set, engine running in closed loop, and the PCM detected the LONGFT value had exceeded the calibrated lean limit.

* A "fuel control" sensor is out of calibration (ECT, IAT or MAP)
* Air leaks in intake manifold, exhaust pipes or exhaust manifold
* One or more injectors restricted or pressure regulator has failed
* HO2S element is deteriorated or has failed

P1359 CKP/TDC Sensor Circuit Malfunction

Engine running, and the PCM detected an unexpected voltage condition on the CKP/TDC sensor circuit during the CCM test.

* TDC signal circuit is open or shorted to ground
* TDC signal circuit is shorted to VREF or system power (B+)
* TDC pickup assembly or its pulse rotor is damaged
* PCM has failed

do you think it might help if i Replace the Distributor Assembly??


or check out o2 sensors?

maybe check the airflow sensor??

any ideas??

 

the first code that pops up in the scanner has higher priority same as in fixing it. if a/f problem showed up first, fix that then move on to the other code