Club 80-90 Forums

Hi all, i'm looking for throttle potentiometer for my 1z TDI lefthand drive whitestar, ive tried heritage and brickwerks with no joy, the part numbers on it are bosh 205001012 VW 3A1721568A 37202659 any info would be very much appreciated or is there a different one that will work.


Many thanks..

it wont be a T3 part it will be the potentiometer off the donor car that the 1Z came from so vw/audi dealer or scrappy/ebay to get the part

I think it was a mk3 golf but im still struggling, to find it

Hi chap, a similar sender was fitted to all VAG TDI's up to ~98 (depends on model), so there's plenty out there in scrapyard cars etc. the main problem is they're usually tucked up in the pedal box and a PITA to remove. Cars with auto trans had one more pin on the sender but it is compatible.

Is yours faulty ?

Thanks andy, this is turning into a bit of a saga. Originally the van failed and would start ok and but only rev to 1500 very slowly, so upon inspection the return fuel line was leaking and the diesel pump had a crack in it and was leaking a lot of fuel. So it's just had the following, new diesel pump return fuel line, whilst it was in bits water pump cam belt kit power steering belt and a couple of oil seals. It was put all back together and started fine and and drove fine then went back to only revving to 1500 again so with all that work back to square one, which made me think it could be a faulty potentiometer but not entirely sure, apparently the part number on the potentiometer is a discontinued number and relates to a left hand drive model as my van was converted in Germany. Really struggling here, is it common for them to fail?

MANY THANKS..

Don't you have any fault codes or GP lamp flashing ?

The symptoms could be caused by an engine-management problem. With VAGCOM/VCDS you can conform correct operation or otherwise of the thottle pot.

success, van running sweet now, it was the injector with the extra cable running off it(don't know what its called) anyway all the other work needed doing so it made me get it all done

Happy van

The potentiometer is exactly the same part I've been looking for for my converted Westy, with very little success. Found one on eBay from Spain which turned out to be dud. There seem to be plenty from Poland, but nothing new which is what I'd prefer...nothing from Europarts, etc!

Our van's accelerator stopped revving in the rain until liberally applying vaseline/WD40, but on Friday she stopped when the wife and 2yr old were on their wya home in the dry. 1st chance to lift the engine cover tonight and cable seems really slack...booked into see Andy @ http://www.thevwcentre.com/" onclick="window.open(this.href);return false; tomorrow who will hopefully work his magic!

If you get a sudden inability to rev or a high contant idle this isn't necessarily the throttle sender, it could be 'limp-home mode' caused by an engine management fault. The ECU should be checked for fault codes. In Stephens case it sounds like the needle-lift sender on injector 3 was faulty.

http://www.ebay.co.uk/itm/361013733196? ... EBIDX%3AIT" onclick="window.open(this.href);return false;


This chap has the potentiometer, but as i found out i did not need it and i sent it back and he sent me a full refund, top bloke

good luck..