My S2 missfires like a ******* under full throttle! Any ideas?
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not had a chance to look to be honest. I would imagine its a boost leak!Comment
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Excuse my ignorance, but why would a boost leak cause a misfire?
Makes a cylinder run too rich to fire?John Bowlerwell
Electronic Engineer
Present:
Nogaro Blue RS2 - TOE
Previous:
Kingfisher Blue S2 - UAA
Volcano Black RS2 LHD - DEXComment
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Sorry I probably could of explained it a little better! I should of said it feels like its missfiring under full throttle! After having sat down at work today and thought about it properly it makes sense for it to be a boost leak. If air is escaping from somewhere as i'm driving then it will lose power for a split second which will feel like a missfire! However when i let off the power the boost is not sufficient to cause the leak so the car accelerates properly!
What I have written makes sense in my head but probably doesnt make sense to anyone else! So sorry to anyone that is reading this lol!Comment
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Lots of ideas: boost leak, spark plugs, spark plug boots (assuming ABY), POSs (not likely but possible) and coils (assuming ABY). You need to go through an organized procedure. I suggest trying this one that I wrote for the UrS forum on AudiWorld:
http://forums.audiworld.com/s4s6/msgs/149788.phtml
Dave F.RS2'd 93 UrS4 5 spd sedan
94 UrS4 V8 6 spd manual avantComment
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......maf?1995 B4 Audi 80 S2 avant 267bhp and 326lbft *sold*
2001 P38 Range Rover DHSE 159bhp and 255lbft
1985 Type85 Audi 90 quattro 135bhp 140lbftComment
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