2002z28

iTrader: (1)

A little more background. My SES light would come on when holding the rpm's at 3000-3500 and stay on. It was the pe300, and it would stay on, random engine misfire code. I would erase it, and then it would not come on again until I did the same thing with the rpm's.
Changed my 2year old TR6's with new TR6's tonight. Bothed were gapped at .030".
Now when I hold the rpm's the SES light will blink, then go away after a while. Havent had the chance to scan it yet, but my guess is the pe300 again.
Havent sprayed it in over 1 yr. Also the car still runs strong no misses or anything.
Maybe the knock sensor?
Any ideas are appreciated. Note: changing the plugs for the first time is a GOOD time.
thanks,
justin

LS6427

iTrader: (2)

Thats not a good gap for N/A.

.050 is much better than .030

2002z28

iTrader: (1)

Ya, but dont I need to keep the gap down for nitrous?
I have a wideband and it appears to be running lean WOT now. about 13.7. At WOT I dont get a SES light though, only when holding the rpms around 3/4k.

02ws666

iTrader: (1)

blinking SES is a misfire code...i think

2002z28

iTrader: (1)

after i got back i disconnected the battery. Maybe I will luck out and the computer just needs to relearn itself? i will take it for a long drive tomorrow.

LS6427

iTrader: (2)

I never heard of a gap that small, even for nitrous. Smallest I've ever heard was .035. But you're having this issue while N/A, right? .030 is really small.

How big of a shot do you have? Maybe try .045. That should be fine for the spray too.

I mean barring a cracked spark plug or broken plug wire......or maybe having a spark plug wire that is touching an exhaust manifold pipe..........that small .030 gap is all I can think of.

bjamick

iTrader: (31)

I have my TR6's in my car gapped at .36 and I'm not getting any issues. Did you make positively sure all the plug boots went on completely.

tording99Z28

iTrader: (3)

The blinking SES is a misfire code for sure. When mine did it last year it would always throw the PO300 code. Check your wires too and make sure they are all on good. You have a misfire for sure.

Michael02hawk

iTrader: (26)

A long shot, but you could try a CKP variation learn. Since you had misfires codes before the plug swap.

http://www.seattleautomotive.com/ckpdoc.htm

1Loudz28

iTrader: (47)

blinking SES is a misfire code

go recheck all of your connections to your plugs/coil packs then make sure that your plugs are all in right.

LS6427

iTrader: (2)

Did you make sure the wires are not touching the exhaust manifold pipes?

tording99Z28

iTrader: (3)

This is also called a CASE relearn. This can be the issue if you have swapped out something in the driveline or changed your PCM OS to a new one. With HPtuners or EFILive you can perform this calibration and this might clear your issue.