3b s2 coupe resurrection

[newsh]

What will it do if its not in the fuel rail?

Hold it in your hand, you will feel it click

[andy10v]

What will it do if its not in the fuel rail?

[newsh]

Any old injector would do, just plugged in.

[andy10v]

Maybe cam pulley has sheared?

The keyway so its out of time?

[andy10v]

Thanks Alex and twoqu, I will read the link properly after work, looks interesting.

Martin, Alex has lent me an ABY ECU and injectors, thanks for the offer though. If you are through a look over would be great as I have looked at it so many times I probably wont see something obvious.

I will pull the crank sensors out and see if I can manually test them?

[andy10v]

Did you actually do the really basic check for fuel and spark?

Injector in a jar / plug laying on the cam cover?

No spark with plug on valve cover, I have not pulled the fuel rail out yet.

[twoqu]

Maybe cam pulley has sheared?

[martinws]

Man this sucks that you still haven't got to the bottom of it. Apart from my ABY ecu I don't think I have anything else of use to you. If you are still having issues I can maybe pop through and lend a fresh pair of eyes and put our heads together.

[twoqu]

Just for clarity the ABY Motronic Manual shows the following:
Pin 1 goes to Pin 12 in ecu which is the 5V reference out.
Pin 2 goes to Pin 8 in ecu which is signal back in.
Pin 3 goes to Pin 19 in ecu which is the ground.
There is supposed to be 4.5-5.5V between Pin 1 & 3.
There is supposed to be 4.3-5.2V between Pin 2 & 3.
So its only Pin 2 that should change when the window is opened or closed.
As Error as said it appears that the pin assignmemnts were reversed from the 3B!
However we know that the engine started so it seems likely that the wiring was correct.
I remembered this:

http://www.picoauto.com/tutorials/audi.html

Unfortunately most of us don't have a few £K to drop on this piece of kit. But if you read carefully it says the engine would start sometimes when letting go of the ign key and even when it started it basically would run for 5mins before dying again. So that seems consistant with your issues. It also ties in with that hall sensor out of sync code you had.
So perhaps its a mechanical rather than electrical issue.

[Error404]

The hall sensor on the ABY is reversed compared to the 3B according to the schematics. Not sure if it matters.

[Wizard-of-OD]

But again 7a and 3b must be the same

They are. I swaped a brand new 7A distributor complete into my 3B.

As for AAN cams early, that is the first time I have seen that and I dismantled 2 1992 AAN motors!

[newsh]

Did you actually do the really basic check for fuel and spark?

Injector in a jar / plug laying on the cam cover?

[newsh]

Yeah seems like it has output.

[andy10v]

But as I get a low voltage, then high voltage at the window the hall sensor appears to be working ok?

Crank sensors next?

[newsh]

So mine seems to be inverted from what SJM says?

Sorry bud, I think the 200TQ is wired differently to the 20valve