Audi 80 Sport - J reg

moomin · 01-01-09, 09:15 PM

Need some help with that bargin "£90" 80 sport I purchased.

Starts and idles fine.
Under acceleration it begins to drop off the revs like a misfire.
Once it's warm the idle bounces between 900-1100 rpm and after a while longer the engine turns off.

What do I need to replace to make it go forward again?

Adam

pimpdriver · 01-01-09, 11:31 PM

Cheap stuff 1st:
plugs
leads
dizzy cap
rotor arm
clean the ISV
check vacuum hoses

Then look at other stuff.

quattrokid · 02-01-09, 09:24 AM

90 quid

pm me next time you go "shopping"

moomin · 02-01-09, 10:57 AM

Quote:

Originally Posted by pimpdriver

Cheap stuff 1st:
plugs
leads
dizzy cap
rotor arm
clean the ISV
check vacuum hoses

Then look at other stuff.

All of the above where done when I got is where could a get another ISV, audi want £135 and GSF with max discount £127

pimpdriver · 02-01-09, 12:33 PM

Quote:

Originally Posted by moomin

All of the above where done when I got is where could a get another ISV, audi want £135 and GSF with max discount £127

ebay?

I got mine for about £35 brand new.

Type in Audi ISV or Audi idle, or try part of your part number.

Clean it first though.

Steve

moomin · 02-01-09, 03:10 PM

right solved half the problem air hose had come loose causing the misfire under power.

Still randomly turns off though, fuel pump relay maybe?

peanut · 02-01-09, 07:18 PM

i was just going to say it sounds like an air leak. Id still check all of the other breathers etc and look for any splits etc. Take the ISV off overnight and soak it in petrol. Its not a permanent fix but if its just clogged up then it might cure it
Gav

02-01-09, 09:24 AM	#3
quattrokid 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Ayrshire Posts: 9,654	90 quid pm me next time you go "shopping" __________________ RS4 B5 (wife's / ours now ) S3 8L Imola Yellow S3 8L Nogaro blue UrWR SOLD UrS4 saloon (SOLD again) S4 Cabrio (SOLD) A4 cabrio 2.5 V6tdi (SOLD) 80 cabrio 2.6 V6 SOLD 90 quattro 10v SOLD 100 2.2e SOLD FOUNDING MEMBER the 200,000 Plus miles Club

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01-01-09, 11:31 PM	#2
pimpdriver Devon Pastie Muncher Classic Audi Club Member Join Date: Jul 2007 Location: Calne Wiltshire Posts: 7,530	Cheap stuff 1st: plugs leads dizzy cap rotor arm clean the ISV check vacuum hoses Then look at other stuff.

02-01-09, 03:10 PM	#6
moomin Grown up member Join Date: Jan 2008 Location: Canterbury, Kent Posts: 98	right solved half the problem air hose had come loose causing the misfire under power. Still randomly turns off though, fuel pump relay maybe?

02-01-09, 07:18 PM	#7
peanut Grown up member Join Date: Dec 2008 Posts: 429	i was just going to say it sounds like an air leak. Id still check all of the other breathers etc and look for any splits etc. Take the ISV off overnight and soak it in petrol. Its not a permanent fix but if its just clogged up then it might cure it Gav