P1623 Diagnostic Trouble Code Discussion for June 2016
Code Word or Key ID Number Read/Write Error in the PCM
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| Help Request | Posted | |
| 2004 Saab 9-3 Arc 2.0L Poor Idle Quality, Misfire, MIL Lamp on P1623: tcm to pcm communication. ... slight rough idle p0300 and p0303 p1623 after swapping coils, spark pugs,injectors the misfire stayed on number 3 cylinder,compression test on all four cylinders 175 psi, had a complete valve job done and still has high misfi... |
June 11, 2016 |
