[mirkwo0dforest]

First off, I know... I need to post a log. I'm getting around to it tomorrow hopefully. I suck at posting the logs. So if anyone wants to explain to me how to do it please reply!

OK, so Map 0 and 4 work perfectly. The stock stuff. Car runs great, no lag, no lights, nothing. My mods are JB4 and that's it. Anyway I switch to Map1 and WOT and the boost is awesome for like 2 seconds and then the car shutters like crazy and the Service Engine Soon light comes on. Turn the car off and switch to Map 0 (stock) and it goes away. Switch back to Map 1 and WOT, same thing, SES light and shuttering. No check engine light, no codes, just the SES light. The car shutters like crazy even when I'm lightly on the gas after the light comes on. It barely accelerates and honestly the car feels like it's going to shake apart until I turn it off and then it's back to normal. Also I want to mention that the car is fine when I switch to Map 1; only when WOT the problem occurs. No half engine light either.

Also, when I go to start it, there's no long start or anything like it would be a fuel pump. Anyway, thanks in advance for your ideas!

-Ryan

[335NJ]

Read codes-install new plugs-move coils of misfire persists.

90%+ chance you have a misfire.

[mirkwo0dforest]

I'm not getting any codes. There's no check engine light or half engine light. Just the SES (Service Engine Soon) light that comes on when it happens. So no misfire codes, which I believe is associated with the Yellow engine light indicator on the dash. JB4 scan doesn't find any code, and I don't have it on auto-delete.

[Mike@N54Tuning.com]

The JB4 only reads DME codes, maybe its from another module? You can scan the car with an OBDII scanner or BavTec tool to see.

Mike

[mirkwo0dforest]

Thanks mike. I'll try out this bluetooth OBDII thing I got in the mail.

[mirkwo0dforest]

RESOLVED:::::: My SES light would not stay on after I shut the car off and turned it back on. I pushed it a little and it finally "stuck" I guess. Checked the codes in JB4 and I had a cylinder 6 misfire. Replaced all the spark plugs and the coil pack for cyl 6 and now she runs like a champion. Thank you all for your help!

[Antetokounmpo]

Originally Posted by mirkwo0dforest

RESOLVED:::::: My SES light would not stay on after I shut the car off and turned it back on. I pushed it a little and it finally "stuck" I guess. Checked the codes in JB4 and I had a cylinder 6 misfire. Replaced all the spark plugs and the coil pack for cyl 6 and now she runs like a champion. Thank you all for your help!

to be honest if you read any thread somewhat tuning related you could've easily figured that out. 90% of new tune users need new plugs.

http://www.e90post.com/forums/showthread.php?t=631829