Code P0300 , mutiple random missfires, no fix yet

[offroadfury6]

nah, no backfiring...

-Update, I put factory air box on today, and cleaned the butterfly reallll good...Looks as if someone took a dump inside my supercharger ... anyways she doesn't studder at start-up anymore. I can't even tell if it's missing anymore, except the few times she had a hard time cranking. It's running a lot better after cleaning around the butterfly but even after 15mins of disconnecting the neg. on the battery cable, she's still throwing the code.

soooo still no fix....I'm debating reallll hard on trading her in at the dealership for a Chevy Cruize.

[michaelbm]

I would have them take a look at it before you trade though, The grand prix in my opinion is a much better car

I might take a crack at dropping mine off at another dealer with experience for a day to see if they can find anything, if not i'll keep my eyes open fora wrecked gxp at auctions and do a little conversion.

[RegalGS98s]

nah, no backfiring...

-Update, I put factory air box on today, and cleaned the butterfly reallll good...Looks as if someone took a dump inside my supercharger ... anyways she doesn't studder at start-up anymore. I can't even tell if it's missing anymore, except the few times she had a hard time cranking. It's running a lot better after cleaning around the butterfly but even after 15mins of disconnecting the neg. on the battery cable, she's still throwing the code.

soooo still no fix....I'm debating reallll hard on trading her in at the dealership for a Chevy Cruize.

See my review of the Cruze http://www.grandprixforums.net/opini...uze-42895.html