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Flashing Check Engine Light

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I left my house this afternoon, stoppped at the mail box, left the car idling for about 5 minutes, then drove about 1/2 mile when my car (1999 996 C4) started sputtering. Immediately, the check engine light started flashing and soon thereafter, stayed on full time. I immediately slowed down and lumbered back home, careful to keep the car at low speed, etc.

When I got home, I turned off the car, then restarted it, the check engine light was gone. I drove the car about an hour later .... no problems / back to normal.

I did change my plugs recently .... but havent had any issue up to this point.

Any thoughts / insight?


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OK, I just had my car connected to the OBD-II. The codes are P0304 (misfire on cyl 4) and P0302 (Misfire on Cyl 2). Give that I just changed my plugs in the last 7 days, is it possible that 2 plugs went out of should I look elsewhere for the problem. Also, is there any possible correlation between #2 and #4? Thx!

Edited by skymast
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OK... Luckily it was a 'amateur hour' problem. Unfortunately the OBD doesn't have this fault code!!! #2 was fine (not sure why I got a misfire read out) but I must not have connected it 'until it clicked' on #4. Thx for the insight. M

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