confused now

[alan66]

sorry to be a pain again but had misfire code read 0302 on 1.8 02 vectra c ,replaced plugs coil pack ,still runs lumpy no pull when attempting to move ,but now cant get any code reading at all now to see other codes if there is any ,does any one think it could be head gasket or am i overlooking something else thanks anyone p.s the orange engine symbol is on all time

[C-Owner]

Im confused at all the threads your starting regarding the same problem ??

[chunkey_monkee]

Hi alan66,
I had the same problem last week with my V6. Same code, same symptons, etc,.. All indicating cylinder no.2 was playing up. I had the AA come out and double check it and he said the same. Turns out it was the middle out of the 3 front coil packs that had gone which I thought was the no.4 cylinder.

[alan66]

but surely new one wouldnt be same as old ....could it

[SlowCoach]

Check inside is not clogged up.

[vectra ste]

pm ed you keep us upto date

[pogo]

Im confused at all the threads your starting regarding the same problem ??

Good helpful answer mate well done!

[C-Owner]

Good helpful answer mate well done!

http://www.vectra-c.com/forum/showth...79#post1958479

http://www.vectra-c.com/forum/showth...26#post1959126

http://www.vectra-c.com/forum/showth...7-confused-now

Difficult to get continuity on the problem and not advise on things already tried if the threads are splattered everywhere.

Just trying to get the OP some help faster.

[Critch]

If the eml is active their must be a code to be read

mis fire on a single cylinder means its fault with that cylinder ie fuel, spark, compression

if its a new genuine coil pack an plugs.

check your spark gap again and your getting a spark

compression test if ok

test injector signal and if needs be swap injector with another cylinder

[troutybrown]

Have you cleaned the throttle body