Engine fault codes - Page 2

Colin Aitchison · 20-11-17, 11:23 PM

Is the spring inside the rotor arm or is it part of the distributor?[/quote]

Rotor arm below with rev limiter built in, as the rotor arm spins getting faster and faster the centrifugal force acting on the rev limiter spring ( green circle ) allows the rev limiter plunger to move in direction of the red arrow and fires to a different cylinder.

hotsnot · 22-11-17, 01:13 PM

My rotor arm isn't like that, it's like this

Andy10v · 22-11-17, 09:56 PM

Does this version of CIS have a rev limit in the fuel pump relay?

vorsprung durch technik · 22-11-17, 11:50 PM

Quote:

Originally Posted by hotsnot

My rotor arm isn't like that, it's like this

Can't see the other side of it but it looks like a standard Bosch rotor arm so it won't have a rev limiter built in it.

hotsnot · 23-11-17, 09:42 AM

Quote:

Originally Posted by Andy10v

Does this version of CIS have a rev limit in the fuel pump relay?

The garage did replace the fuel pump relay, where is it located as it's not where I thought it would be under the bonnet, so I can check they fitted the correct one?

mikes2 · 23-11-17, 02:00 PM

That's the normal fail when a 4 cyl fuel pump relay is used in a 5 cyl car.

FPR should be in the main fuse box in the engine bay on an 87 ?

hotsnot · 23-11-17, 04:06 PM

Relay is looking like it could be the culprit...interesting read. When I put my VRN into car parts websites it comes up as a 90hp model.

http://www.clubgti.com/archive/index.php/t-188590.html

hotsnot · 23-11-17, 05:07 PM

Ok, found it. The fuse box cover doesn't list it as that.

mikes2 · 23-11-17, 07:10 PM

Is it a GT or Audi Coupe ?

What was the original engine as the 90hp 1.8 were never called GT. That was reserved for the 1.8i, 2.0i and 2.2i for the 87 cars.

hotsnot · 23-11-17, 09:17 PM

Quote:

Originally Posted by mikes2

Is it a GT or Audi Coupe ?

What was the original engine as the 90hp 1.8 were never called GT. That was reserved for the 1.8i, 2.0i and 2.2i for the 87 cars.

GT, does anyone have the correct pt number for the relay?

22-11-17, 09:56 PM	#13
Andy10v Grown up member Classic Audi Club Member Join Date: Dec 2008 Location: Stirling Posts: 861	Does this version of CIS have a rev limit in the fuel pump relay? __________________ 2005 350z GT Sold-1992 3B S2 coupe-RS2+, 996s, konis, forged rods, rear torsen.... Sold-1993 ABY coupe

23-11-17, 02:00 PM	#16
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	That's the normal fail when a 4 cyl fuel pump relay is used in a 5 cyl car. FPR should be in the main fuse box in the engine bay on an 87 ? __________________ 1991 90 quattro 20v sport 1991 90 quattro

23-11-17, 07:10 PM	#19
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	Is it a GT or Audi Coupe ? What was the original engine as the 90hp 1.8 were never called GT. That was reserved for the 1.8i, 2.0i and 2.2i for the 87 cars. __________________ 1991 90 quattro 20v sport 1991 90 quattro

20-11-17, 11:23 PM	#11
Colin Aitchison Senior Member Classic Audi Club Member Join Date: Dec 2013 Location: Back home in Tillicoultry Posts: 1,308	Is the spring inside the rotor arm or is it part of the distributor?[/quote] Rotor arm below with rev limiter built in, as the rotor arm spins getting faster and faster the centrifugal force acting on the rev limiter spring ( green circle ) allows the rev limiter plunger to move in direction of the red arrow and fires to a different cylinder.

23-11-17, 04:06 PM	#17
hotsnot Grown up member Join Date: Sep 2012 Location: Ripon, North Yorkshire Posts: 59	Relay is looking like it could be the culprit...interesting read. When I put my VRN into car parts websites it comes up as a 90hp model. http://www.clubgti.com/archive/index.php/t-188590.html

23-11-17, 05:07 PM	#18
hotsnot Grown up member Join Date: Sep 2012 Location: Ripon, North Yorkshire Posts: 59	Ok, found it. The fuse box cover doesn't list it as that.