Need a new throttle body?

[dubster99]

Yea the second hand one didnt allign, same errors! Starting to think it could be the ecu thats not completing the adaption

[h100vw]

Yea the second hand one didnt allign, same errors! Starting to think it could be the ecu thats not completing the adaption

Still got your other ECU around. Try that even if you don't start it.

Gavin

[Madz]

Was the second hand one known 'working' or just from a wrecker/online ? You'd be unlucky but you could have ended up with 2 'bad' ones... consider this: the alignment process actually started all my issues - my car was running okay before I stupidly did that. Vagcom was fairly new to me at the time and I was experimenting with all the great things I could do When contacted afterwards, Vagcom assured me the process was safe, and indeed the alignment worked fine on my new TB, but there's no doubt that performing it on my old TB caused or at least triggered my issues - probably the most likely explanation is that there was an underlying age related issue there, but while the thing was in the correct alignment it wasn't manifesting itself. Try to align it and you end up moving/clearing the TB out of 'correct' alignment and then due to whatever issue not being able to realign it properly.

I guess what I'm trying to say is even if the second-hand TB was working in whatever car it came off, the first thing you do when fitting it to yours in an alignment and then if they do have a common failure/weakness (which they seem to) it's not unlikely you end up with another failed unit on your hands.... the fault could be quite common with the old units but most people would never know as they don't go around trying to align them If you're getting parts from wreckers I'd take vagcom, plug the TB in at the wrecker and make sure it aligns before accepting the part...I can't 100% remember but I don't think it needs to be physically bolted to the manifold to do this does it? - that's all assuming your car is still driveable on the old TB of course...

[dubster99]

Yes it was a working unit, reason for my problems is I had taken off the manifold to polish it and had to taken off the throttle body to paint it.
Car was running fine when I had it together before I did this, but in the process I also changed supporting mods for a phase 3 turbo upgrade including an ecu from a later model audi, unsure where the problem lies but Gav has sent me another ecu which is from an early model golf so Ill ty that first and see.

[schwartza3]

just install an adjustable screw where the cable connects the throttle body to control your idle, different story if it was a dbw. better that buying a whole new tb

[dubster99]

Tried another golf ecu and adapted the tb so it was the a3 ecu that wasnt adapting!

[tigger73]

Tried another golf ecu and adapted the tb so it was the a3 ecu that wasnt adapting!

Nice work! One step closer.....


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[dubster99]

So thinking I may need an a3 tb for it to run sweet on the ecu, didnt happen to keep that other tb madz?

[Madz]

Cant find it. Doesnt help you anyway though does it, it would be the same as you have (off a golf)

[dubster99]

No the a3 hasnt got cruise where the golf does

[elcono]

I got the v60 error of implausible signal

The revs would bounce down to 500 and after the adaptation would climb to 1300 and bounce around

I took the side of the throttle body off and cleaned the pcb with electrical contact cleaner. There were bad score marks where the arm moves along the pcb. Cleaned it up and blew out all the crap and its been fine ever since

For the first time I am code free in vcds!