leon 20v turbo misfire on boost.

[sxboy200]

ive got a 51 plate 1.8 20v turbo cupra and been havin a few problems with it. first of all it felt like the turbo was holding back this wasnt so much of a problem its now got a misfire when the turbo spools up, fine wen not on boost but bad wen boosting.
sometimes it makes the engine management light flast 10 to 15 times. other times if u keep ur foot down the car seems to cut the turbo out until u change gear, slightly confusing!!!!!!!

its been on a diagnostic machine and came up with a few falts but still not no wiser,
1. lean on bank 1
2. multiple misfire
3. misfire on no. 3 cylinder
4. turbo charger air leak.

ive checked all hoses and seem fine also cleaned out throttle body, i was just wondering if any 1 else has had and problems like this b4, and advice grately taken!!!!!!

 

[oldman]

hello, can't answer as a diesel driver, and you'll have more luck in the main thread area not FAQ

 

[andycupra]

sounds like potential coil pack issue to me.

 

[sxboy200]

i thought that but would it make a difference to the turbo cutting out, ive brought 1 coil pack just waiting 4 it 2 turn up gona try it in no.3 c if it makes any difference, it only has a misfire on boost i thought it make b under more load wen boosting but its a bit more of an intelegent engine than the cars ive had in the past!!!! lol