jc1989rs

Hi all

Just wondering if any of you guys would know why my 2wd has started misfiring under boost? She climbs up the boost alright but it's hits 10psi like normal but then starts to miss?

Any ideas?

ghost3lite

what spark plugs have you got and how old are they? also check plug gap

toutcos

I had the same problem and after a few nights of getting dirty turned out to be a 2 minute fix literally, mine is also 2wd and fairly standard, there is a small plastic elbow on the plenum with a vacum pipe which runs to the dump valve. Turns out the plastic elbow was lose and just needed some PTFE tape and tightening up , this seemed to do the trick and has been spot on ever since.

jc1989rs

Cheers guys, cleaned the plugs and reset the gaps all working perfectly now!