Mechanics

SERVICE ENGINE CODES

1997 Oldsmobile Cutlass • 224,000 miles

I get to codes my check engine light flashing codes that come up is P0300
and P1654. I know that p0300 is a radom misfire I checked and changed all my spark plugs which were pretty worn out and checked spark plug wires and spark. The car was running rough idle and since I changed the plugs it made it run a lot better and now I can't clear this code. Could the tempture sensor have anything do about this or the oxygen sensor.
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Lenster
October 27, 2011.



1654 is an a/c relay problem. Check for a blown fuse thenif not that have apro look at this.

Hmac300
Oct 28, 2011.
What does the a/c relay need to do about the engine light flashing and running and it now runs better since I replaced the plugs and fuel fiter.

Tiny
Lenster
Oct 28, 2011.
You asked what code p1654 was and that was it. The service engine light doesn't only go on because of engine problems.

Hmac300
Oct 28, 2011.