(Electrical issue)Intermittent stumble with check engine light with no codes??
Thread Starter
Drifting
Joined: Sep 2007
Posts: 1,649
Likes: 50
From: Goldsboro NC
(Electrical issue)Intermittent stumble with check engine light with no codes??
Ok I know I posted a thread a little over a week speaking of low rpm misfires. I also mentioned, in passing in another thread, that my car doesn't seem like it wants to start first try. Fires right up the second though. Ok today coming home from work I noticed my tachometer jump with a quick spike. Infact it did this this morning as well. Shortly after returning to normal and a few miles down the road, I got a check engine light while the car simultaneously fell on its face, PLUS the oil pressure gauge went to zero. Not only that the gas pedal seemed a little bit stiff and the car idle went up to around 1500rpm
. NO CODES! 
. It happens really quick and bounces back. The oil guage returns to normal and after around 30 sec the idle settles back in. This happened 3 times coming home from work today. I checked battery cables, cleaned the grounds underneath the battery jus for good measure. I have pulled the PCM panel to have a look see just to see if something is obviously wrong. Doesn't seem to be something obvious. Cam sensor, Crank sensor??? Im at a loss guys
Thread Starter
Drifting
Joined: Sep 2007
Posts: 1,649
Likes: 50
From: Goldsboro NC
Not all codes that set the CEL are reported by the C5's built in reader. If you have a hand held emissions scanner read the codes with that. You can also take the car to most any parts store and have them connect one of their emissions scanner and read the emissions codes.
