Misfiring Audi A6 (old shape) 2.0

Honest John Back Room » Technical matters
What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks
View Threaded
Wed 9 Oct 2002 21:18
Misfiring Audi A6 (old shape) 2.0 - PDH
Can anyone suggest a reason why my 95 A6 2.0 misfires between 2-3Krpm, usually when under a light rather than hard load? Also, the idle speed oscillates intermittently. The main dealer has done a negative diagnostic test, and a good independant guy didn't find much either. I've tried fuel additive, at their suggestion, but to no effect.
Reply | Report as offensive | Link
Wed 9 Oct 2002 23:05
Misfiring Audi A6 (old shape) 2.0 - David Lacey
Spark plug metal thingies - shiny ends on HT leads will be your problem

MG-Rover Questions? forums.mg-rover.org/
Reply | Report as offensive | Link
Thu 10 Oct 2002 09:07
Misfiring Audi A6 (old shape) 2.0 - Richard Hall
My 1990 Coupe had the same problem. Eventually traced to faulty rotor arm in the distributor. Audi glue the rotor arm to the shaft (why?) and so none of the parts catalogues listed it, but after chiselling off the old arm, I took the remains to Halfords and found it was the same design as a Mk3 Escort.

Of course the 1995 A6 2.0 has a totally different engine, but might still be worth a look. Rotor arms, even for Audis, aren't very expensive.

Richard Hall
bangernomics.tripod.com
Reply | Report as offensive | Link