Bad missfire.running on 3 cyls
#1
Scooby Regular
Thread Starter
started car yesterday(MY00)and it was running rough on 3 cylinders and backfiring.Today put new plugs in(what a job)and still doing the same.Any ideas what the cause is?coils or MAF.
I had slight missfire at WOT in the past few weeks,but this is now really bad.
I had slight missfire at WOT in the past few weeks,but this is now really bad.
#2
Same thing happened to me 3 weeks ago on my 99 car ( see shot engine below). After trying many things with no success, stripped the engine to reveal burnt out exhaust valves and seats and a scored bore (not to mention a toasted turbo too.)
#7
Scooby Regular
Thread Starter
cheers RON,but problem now solved.I think it was spark plugs after all,as when I tried the car after changing them yesterday I had a bad connection on one of the leads.Rectified this and all is well.Took it out for a spin and the WOT missfire has gone too.Still not sure why the original spark plugs failed.They were only 5 months old under 3000 miles?
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