Audi 80 2.0L ABK engine juddering/misfire

**80sport** · 19-12-2007,08:47 PM

Guess that's what I'll have to try now - just got an audi 80 that will have to last me several months (my trusted mechanic can't change the camchain on my saab till Feb :-( ) and the juddering was getting on my nerves. Got a fault code reader and 2x2 adapter and no fault codes at all. Just changed the dizzy cap, rotor arm and ignition leads (the car has had spark plugs a few K miles ago).

**80sport** · 23-12-2007,11:59 AM

:-( Just took the relays out and opened them both (the smaller 30 and larger 363). No dry joints at all

Now I'm running out of ideas!

**Jillbaby** · 22-01-2008,04:43 PM

Hi everyone, am new today in an effort to find out why my late Mreg Audi 80 2,0E is juddering - so good (in a funny way) to find out it's not just my garage thinking I'm a dippy female! Was over the moon reading Steve's solution....til I read the last post saying that didn't work. Oh well, at least I can check if a dry joint is my prob. Not that I can do it, but I know a man who can! haven't had a bill yet for the last 2 garage visits but they have done diag tests with no result, replaced idle control valve & rotor arm, checked electrics etc etc etc ad mauseam. I just want my lovely car to get back it's poke! I'll keep you posted if it finally solves the problem. Cheers guys

**Jillbaby** · 22-01-2008,05:10 PM

By the way, it seems a lot of you have had the car die on you - I haven't had this (yet lol) but the prob is almost constant when around 3000 revs. Unfortunate since that's cruising revs. Drove back from Gatwick the other night in a howling rainstorm with it happening all the time - nasty! Doesn't seem to matter if it's wet or dry out. Anyway, I'll let you know if resoldering the joints works. If so, I'd like to buy SteveInDaBury a

!

And apols for all the typos in my previous post!!

**80sport** · 22-01-2008,09:02 PM

Hi,
Welcome to the forum, hope you'll get your audi sorted soon! Despite being an old scrapper the audi handles OK and is a surprisingly decent car! It even returns around 30mpg (2.0E sport SE = ABK 8V engine, manual transmission).

Still no news here, couldn't be bothered with the one I'm driving, it still occasionally surges on tickover (actually the revvs drop and then go up to prevent stalling). Guess it may be an air leak somewhere, I'll need to spray some brake cleaner around the throttle body and see if the revvs go up a bit...
Unless someone has a different idea???

**SteveInDaBury** · 31-01-2008,05:03 PM

Originally Posted by Jillbaby

By the way, it seems a lot of you have had the car die on you - I haven't had this (yet lol) but the prob is almost constant when around 3000 revs. Unfortunate since that's cruising revs. Drove back from Gatwick the other night in a howling rainstorm with it happening all the time - nasty! Doesn't seem to matter if it's wet or dry out. Anyway, I'll let you know if resoldering the joints works. If so, I'd like to buy SteveInDaBury a

!

And apols for all the typos in my previous post!!

Good luck with the soldering, note that dry joints are not always obvious so if in doubt it doesn't hurt to resolder the joints anyway.

I really wish I'd taken a before and after pic.

drinks always welcome

**scotty33** · 31-01-2008,07:07 PM

If it's any help? Pics of what it should look like in this thread:

https://www.vwaudiforum.co.uk/forum/s...?t=1787&page=2

**Jillbaby** · 29-02-2008,04:37 PM

Well sound the trumpets and give that man a knighthood!! After about 7 months, 3 trips to the garage and much swearing - I think it's fixed!! Had a mate look at those joints and indeed some were dry. About 10 minutes later, after a quick resoldering of all the joints guess what: the car ran like new and has done for about a week now with no sign of the old trouble returning. My baby's finally got its poke back! I can't believe that something so simple to fix (and even I could have done it, if I had a soldering iron) is not on the checklist with this kind of fault. It certainly should be now. SteveInDaBury, there's a beer waiting for you here in Hampshire - can't thank you enough mate!

). Listen everyone - if you've got this juddering problem, check those joints first and save yourself a lot of hassle and money at the garage. Mind you, I haven't yet had the bill for the last two trips before Christmas, maybe that's cos they knew they hadn't fixed it!

**AvantMaster** · 01-04-2008,03:23 PM

Hi folks,

Another member of the 'juddering club' here !! Have just read with interest all your posts and am relieved to discover I am not alone !! I have a 1995 A6 Avant 2.0l ABK. Lovely car but for the juddering !

Will spare you the details of what I have tried ( and spent ) so far as you have all previously covered it.

Excitedly removed the relay panel under steering wheel only to find four relays in place precisely as depicted in the Haynes manual ( Body Electrical System 12.3 Page 12 Illustration 3.9b ). These are numbered left to right 213, 204, 229, 208 and labelled as follows

213 = Relief Relay ?? No idea what it's for !! Audi Nr 443 951253J
204 = Horn Relay
229 = Intermittent Wiper Relay
208 = Diesel / Jetronic ( I think pump ? )

Also looked in engine compartment relay box and drivers side door sill area relays.

Cannot find the ECU relay or any relay with 30 on it.

Also the relief relay 213 seems to be better sealed than the others so cannot open it !!

Would dearly appreciate any ideas !!

Huge Thanks in advance to anyone who replies !!

AM

**AvantMaster** · 01-04-2008,04:00 PM

PS I noticed that some of you guys have sourced secondhand MAF boxes. Would appreciate if anyone could direct me toward a source as I fear that could still be a contributing factor.

Next step after (if) I can find the darn ECU relay !!