2L petrol misfire??
Posted: Tue Sep 08, 2009 4:34 pm
I'm having some problems with my 2.0 petrol EW engine. Its a V reg. When I am cruising (not as in George Michael) along with my foot on the throttle so that its almost on/almost off, I get a slight but constant engine judder which feels like a misfire but it isn't! That make sense folks? This is particularly noticeable in 4th gear. It is really irritating. Any ideas? I have a set of Bosch 4 point electrode plugs fitted and I've heard that some engtines don't like these. However, I don't think its these causing the problem this time. I have a new lambda sensor fitted and a new coil pack but still the problem is there.
Now I have another problem which you think may or may not be linked to this. On idling, the revs go down to around 500rpm and it feels quite rough but if I put the air con on then it idles at 800rpm - so I leave the aircon on! If I switch the aircon off, after a few miles of stop starting at lights etc the engine management light comes on. HELP!!!!!!!!!
Now I have another problem which you think may or may not be linked to this. On idling, the revs go down to around 500rpm and it feels quite rough but if I put the air con on then it idles at 800rpm - so I leave the aircon on! If I switch the aircon off, after a few miles of stop starting at lights etc the engine management light comes on. HELP!!!!!!!!!