80q b4 2.2 20vt project

[newsh]

Looks smelly

[A80Avant]

No, that's normal. Put it back on the car

[Costash]

Only a little bit

[Thuppu]

https://youtu.be/5vR07Fp79NY

I don't know, but something seems to be missing.

[Thuppu]

[jogi730]

Oh dear. Sorry to0 hear that. Good luck with the repairs

[Thuppu]

Today it happend! The turbo did blow. I may have lost the whole turbine... Didn't take it off yet, though. It doesn't build any boost at all, the compressor wheel doesn't spinn freely when turning it with the hand, in fact it doesn't spinn at all when engine is on. Sounds that something is in the exhaust and also my 3" exhaust valve is stuck open. Also quite big amount of blue smoke comes from the exhaust.

[Thuppu]

Aah, yes, me, stupid. Yea, have to check those, and also the ECU internals.. thanks.

[M2ki]

He is using gearbox sensor directly, you probably have cluster speed output wired if there was motronic in use before.

But there is no point in guessing, take the multimeter and check continuity between pin50 on ecu and between T10/8 and T10/9
T10 is circled in red.

[Thuppu]

Ok, thanks. Those are totally different settings than what I have. Will try them.

[Grillage]

Soo, Vems doesn't work with stock audi VSS signal, even with the zener protection?

http://www.vems.hu/wiki/index.php?pa...r%2FWheelSpeed

Mine does - just wired it directly in - here's my settings that get the VSS to show same as speedo:
Screen Shot 2018-12-14 at 1.35.55 PM.png

[Thuppu]

Yea, thats also a problem, because harness swap isn't done by me. But according to the previous owner everything is done in the harness. Does AAN motronic even work right without the speed info? This have been rolling with an motronic before me.

Soo, Vems doesn't work with stock audi VSS signal, even with the zener protection?

http://www.vems.hu/wiki/index.php?page=InputTrigger%2FWheelSpeed

[M2ki]

This is also a B4 V6, and basically an AAN, so the motronic 55 ECU connector(car side) should have the VSS signal in pin 50. But as this VEMS ECU is quite old, I suspect there isn't any wheel speed wire connected from the connector to the ECU board? Would have to open it and check.

Pin 50 must be connected to cluster speed output. 10V squarewave. If you swapped aan harness into B4 do you even have that connection?
Also vems speed input is 5V max. Watch out for not burning it.

[Thuppu]

This is also a B4 V6, and basically an AAN, so the motronic 55 ECU connector(car side) should have the VSS signal in pin 50. But as this VEMS ECU is quite old, I suspect there isn't any wheel speed wire connected from the connector to the ECU board? Would have to open it and check.

[Grillage]

I meant where is the signal from, abs sensor, gearbox sensor or cluster speed output?

My setup is a V6 B4 that I have swapped an AAN into - so take this with a grain of salt. I pull it from the G22 VSS via T10 - the black 10 pin connnector. My wiring diagrams show it as a brown/red wire at Pin 8 Pages from Audi 90 Electrical Wiring Diagrams 1993.jpg