service engine soon light flickering after starting?

[turboaddict2]

I was at work today and during lunch time I switched to a different chip and then reset the ECM. Didn't start the car until work was done(which is 4 pm). When it came time to start it it sounded like it was missing or a rough idle. While that was happening the SES light was flickering. I shut it off and started it again. Same thing happened. Shut it off again and now all is good. I wonder what caused it. maybe the ECM had to relearn?

 

[azgn]

that "usually" means a bad chip or chip not seated, or contacts dirty on the chip socket

 

[Weazel]

Sounds like what my car was doing after I "fixed" the intercooler and adjusted the boost level. I was getting a code 51. Check this site to see the "poor man's" way to read codes. This is what I had to do to check. After cleaning the ECM connections all is well, and the light doesn't flicker anymore. Good luck:
http://www.gnttype.org/maint/malf.html

 

[turboaddict2]

after the light flickered i didn't get any malfunction codes according to the scanmaster. Starts up fine now.

 

[Fred 86 GN]

Mine did the same thing. Would only happen every once in a while. Then it got more frequent. I changed to a different chip and the problem has gone away.

Bad chips will make the SES light flicker and the car run terrible.

HTH

 

[turboaddict2]

well mine hasn't done it since

 

[Fred 86 GN]

Mine did not "fail" for six months after the first episode of rapid flashing SES light. Then about a month later. Then more often...

Hope yours behaves.