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My forever ****** running S4 isn't running right again. Don't really know what to look for anymore, no error codes and I've chnaged all sorts including lambda and maf sensors. Checked compression as well that's all good too. Just feels very flat? Boost is there but just doesn't have the go. I have 2 liter diesel Beemers flying past me as if I'm stationery?
anyone down south would want to look at her maybe?
cheers lads
'93 Audi 100 Avant - R.I.P
'92 Audi UrS4 Avant - SOLD
'93 Audi UrS4 Avant LPG
Boost leak or iffy MAF plug? Mine currently eevry week or two starts running flat with no go at all. All I do is unplug the MAF and plug it back in which immediately fixes it. Need to get around to changing the MAF pins...
Done a boost test and no leaks, I've checked mad plug and there is no corrosion on any of the pins. Tested MAF plug using Dave's (UrS4boy) procedure and it was all well within spec.
'93 Audi 100 Avant - R.I.P
'92 Audi UrS4 Avant - SOLD
'93 Audi UrS4 Avant LPG
Done a boost test and no leaks, I've checked mad plug and there is no corrosion on any of the pins. Tested MAF plug using Dave's (UrS4boy) procedure and it was all well within spec.
Do you have a boost gauge? What level of max boost are you getting? Sounds to me like your issue is with the Moisture Trap on the firewall.
RS2'd 93 UrS4 5 spd sedan
94 UrS4 V8 6 spd manual avant
I've put new N75 H version on Colesy's group buy as that is one of the rare sensors I haven't done yet and heard people say it improves things if it hasn't been done and mine has down 220k miles
'93 Audi 100 Avant - R.I.P
'92 Audi UrS4 Avant - SOLD
'93 Audi UrS4 Avant LPG
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