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Showing results for tags 'odd combination of codes'.
Throwing this one out to the masses. I had an opportunity to diagnose a 1999 996 C2 (not my own) which has some very odd symptoms. The car is idling somewhat rough, but not alarmingly so, and there is a slight pop (not quite a backfire) from bank 1 exhaust (psgnr side pipe). That is pretty much the only unusual noise, aside from some slight "pinging" noise coming from bank 2. The owner reports its down on power throughout the range. I scanned the stored codes (no CEL) and found the following: p1531 Camshaft adjustment, bank 1 P0341 Camshaft Position Sensor 1 - Signal Implausible, S