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  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Sat Nov 18, 2017 11:13 am   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
So my next step is changing the diapraghm in the fuel distributer. I'd rather not spend 300 on a rebuild without knowing 100%. If it is perforated at least it will be an improvement. I'll clean as mu ...
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Tue Nov 07, 2017 9:19 am   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
Fuel pressure tests were a disaster. Leaks went everywhere, returning the kit! Next step is a visual inspection of the metering head and determining if the plunger is functional.
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Sun Nov 05, 2017 12:10 pm   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
Compression cold:
Cyl 1: 130psi
Cyl 2: 150psi
Cyl 3: 150psi
Cyl 4: 180psi

Are these ok?
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Fri Oct 27, 2017 7:58 pm   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
So, I had another go today. Same old no-start. I was lazy and didn't tighten the clamps on the michelin man intake boot. I had sprayed starting fluid into the intake. The boot blew straight off and th ...
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Thu Oct 26, 2017 8:45 am   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
So I came back from 2 weeks away. The car is in a no-start condition. Interesting is that there appears to be some form of detonation at random moments (this might be the correct description).

It m ...
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Thu Oct 05, 2017 8:16 am   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
Yeah, I got stuck on a roundabout during rush hour this morning. I was pumping the throttle so hard it broke off! The car was similar to before running really rough at cold. At the roundabout I was cr ...
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Tue Oct 03, 2017 9:28 pm   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
RESOLVED:

I had a clear plan of action this evening. Definitively rule out the ECM coolant sensor and do what tests I could on the accumulator/metering head.

Oddly the car started 1st time - act ...
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Tue Oct 03, 2017 8:15 am   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
OK...the accumulator. I have one in my fuel tank P/N 0438170052. There is also a fuel pressure regulator on the metering head. I assume the only way to test these is to pressure test the system.

M ...
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Mon Oct 02, 2017 7:33 pm   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
OK, I took some measurements of the various sensors/valves on my CIS ACE engine. Some measurements were taken when the engine was warm. Yes it was a pig to start again but ran ok after 20 minutes afte ...
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Mon Oct 02, 2017 12:30 pm   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
Thanks, I might just have that 204 page pdf! One thing I have on my side is a working scantool. Each sensor throws a code when disconnected. I am working with the assumption that the ECM is good and t ...
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Mon Oct 02, 2017 8:04 am   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
Update: From what I can gather CIS systems which use sensors also have a "limp mode" when the sensors are disconnected. As mentioned earlier in thread I disconnected the CSV with no effect, ...
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Thu Sep 28, 2017 11:08 am   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
It hasn't thrown up any codes since with respect to the idle. It may be something that is happen only on the cold start cycle.

It has become clear that it is going to find someone with the diagnost ...
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Mon Sep 25, 2017 8:22 am   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
This morning he car was very rough until it hit 90. Any throttle input would cause it to stall. Then, as it reached 90 it smoothed out. I was running a live feed. I think I need to get a full unders ...
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Sat Sep 23, 2017 9:16 pm   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
Ok, the mechanic said it was the ISV, but the car was behaving in his presence. Fortunately, I had a spare with me when I went to collect the car, tried it, and, no improvement. But, now we could repr ...
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Thu Sep 21, 2017 9:36 am   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
Yes, the one on the airbox.
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Thu Sep 21, 2017 8:56 am   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
I can get the mechanic to take a look at fuel pressures - I think he has a kit. The G62 is also at the rear of the head on the 16v, white connector. This is the one I cleaned.

Regarding the fuel sy ...
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Thu Sep 21, 2017 7:55 am   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
Update: Removing the cold start connector did not have any effect other than making the car harder to start. The car cut out as it did before. I got it running by keeping it at 1500rpm until warm/hot ...
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Wed Sep 20, 2017 5:57 pm   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
Codes:
00537 - lambda (oxygen sensor) regulation
08-10 - Control limit surpassed - Intermittent
---------------------------------------------------------
Which sensor does the ECU use - I am gett ...
  Topic: Audi 80 ACE 16v: Good when hot - Poor when cold
EightyWay

Replies: 25
Views: 3025

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Wed Sep 20, 2017 8:11 am   Subject: Audi 80 ACE 16v: Good when hot - Poor when cold
Hi, I have a recurring problem with the running of my Audi 80 2.0 16v ACE engine. It ended up in a no-start condition and ended up at the garage. The garage correctly diagnosed a worn distributor roto ...
  Topic: oil leak
EightyWay

Replies: 4
Views: 2871

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Mon Sep 18, 2017 3:42 pm   Subject: oil leak
My leak came from the oil cooler o-ring in the end. I have a rear mainseal ready for when the clutch eventually goes.
  Topic: water leaks into car
EightyWay

Replies: 32
Views: 22239

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Sat Sep 16, 2017 5:10 pm   Subject: water leaks into car
+1 for the sunroof water ingress on my side. I'll give your grease fix a go!
  Topic: Audi 80 ACE 16v coil
EightyWay

Replies: 0
Views: 1649

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Sat Jul 08, 2017 2:58 pm   Subject: Audi 80 ACE 16v coil
Hi, I recently had my coil die on a roundabout during rush hour. Stopping me dead in my tracks. One of the previous owners had swapped the electrical larger connector (on a separate amplifier) to the ...
  Topic: oil leak
EightyWay

Replies: 4
Views: 2871

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Sat Jul 08, 2017 2:48 pm   Subject: oil leak
As at the back of the engine block leading you to think you had a rear main seal leak?
  Topic: Radiator Fan Relay
EightyWay

Replies: 23
Views: 18695

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Sun Jul 03, 2016 1:15 pm   Subject: Radiator Fan Relay
That worked out well. I had a 29mm deep socket for the topside sensor which fit over the rad sensor too. I worked quick as not to loose too much coolant. The replacement part was a Febi 1528 Radiator ...
  Topic: Radiator Fan Relay
EightyWay

Replies: 23
Views: 18695

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Fri Jul 01, 2016 4:12 pm   Subject: Radiator Fan Relay
Sorry about your accident Matt. Am I right that the afterrun sender is actually run by the while 2 pin sensor at the back of the block? I actually think both sensors are acting up. I do a bit of diagn ...
  Topic: Radiator Fan Relay
EightyWay

Replies: 23
Views: 18695

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Wed Jun 22, 2016 11:33 am   Subject: Radiator Fan Relay
Access is pretty good, so no need to remove the rad. I have the Ace 16v engine.
About 17 in these parts. My coolant hoses need to be replaced anyway (recent steam action on the motorway. Crumbling t ...
  Topic: Radiator Fan Relay
EightyWay

Replies: 23
Views: 18695

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Tue Jun 21, 2016 7:56 am   Subject: Radiator Fan Relay
...to follow up on this my radiator fan speed is now locked on speed #3. It's loud but effective. It turns on immediately as the ignition is turned on. I am suspecting the sender on the rad. I haven't ...
  Topic: 00537 - lambda 02 sensor regulation - code. ACE 16v
EightyWay

Replies: 54
Views: 58472

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Tue May 31, 2016 5:32 pm   Subject: 00537 - lambda 02 sensor regulation - code. ACE 16v
I ended up replacing the potentiometer with a new unit (which also included a new air flow meter). Even after all the fettling with the mixture settings there was still no change in the running of the ...
  Topic: 00537 - lambda 02 sensor regulation - code. ACE 16v
EightyWay

Replies: 54
Views: 58472

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Tue Dec 08, 2015 9:46 am   Subject: 00537 - lambda 02 sensor regulation - code. ACE 16v
Anyone know where to get these parts?
The original part is: 3437224037
It has been superseded by parts: 3 437 010 061 and BOSCH F026T03024

It seems that production has stopped - has anyone has s ...
  Topic: Brake bomb hose weeping
EightyWay

Replies: 2
Views: 5176

PostForum: Series 3 and 4: 80, 90, Coupe, Avant, S2, RS2   Posted: Thu Oct 22, 2015 7:08 pm   Subject: Brake bomb hose weeping
The dealer couldn't supply one so I am going to use a Cohline Oil Pressure Hose with the same dimensions. Working pressure 55 bar and busting pressure 200 bar. It is suitable for mineral and synthetic ...
 
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