mk2 91 Hreg 16v'er

[BigRon]

spec: as subject line
Car over heated as a result of the heater matrix leaking, filled car with wet misty smelly stuff, had new heater matrix fitted but now the car sounds very lumpy and wont tick over,Any info needed.
also garage man said the control box was faulty and that they are 400 quid for new,any ideas.

[Deefadog]

By control box does he mean the isv controller? it's behind the center console!

Get your self a beer and read this thread  http://www.golfgtiforum.co.uk/index.php?topic=12817.0

This happened to me and i went mad for months untill i was told this couldbe the problem! ?380 + VAT or pay the going rate of about ?15 - ?20 for a second hand one!

I got my from radicoolvw vw breakers yard! give em a ring, arange a price and postage (mine was ?20 all in)  and send em a cheque, wllhave a new on in around 2 weeks

Details -

Radicool VW - VW specialist breakers yard

Tel - 01202 823060 - Mob - 07970 460 199

Unit N
Long Meadow Works
Ringwood rd
Three Legged Cross
Wimborne
Dorset
BH21 6RD

Note - need to send cheque only, no card payments.

Fitting is easy, unplug old and plug in new one!

All credit to Gambit on this btw

Good luck

[VeeDubGTI16v]

?380 + VAT

gambit you got a bargain

next one i find is going on ebay

[Deefadog]

ooops, dropped him in it o er mmm, i meant ?3.80p he he

[Gambit]

just disconnect the ISV in the engine and see will it idle of the idle screw.

only thing i can think of is that with the heater matrix exploding it may have somehow sprayed water onto the ISV controller behind the centre console causing it to short circuit

@veedubgti16v - cheers

[BigRon]

I have changed the isv and the cdi unit and the isv, when u start the car,it fires up fine then after about 2 seconds it revs round to 3500 rpm, i then fitted a mastic nozzel down the pipe from the air box to isv and it ticks over fine all though it does seem down on power slightly,mind u i have been drivingh me misses 328 for a month.

Please Help
|\thanks

[tinman]

to see if the control unit is knackered - find it and unplug it.

see if the car behaves any differently. if its the same - then its knackered.

you dont really need to even spend 20 quid on it to be honest. just find someone who has wrecked their 16v and offer them a fiver for it. the are not exactly a sexy part so they rarely if ever get sold.

the unit from VAG i thought was about ?120. which is what mine cost 380 sounds more like the price for the ECU.

[BigRon]

i have just bought a ecu and isv from a user on here for ?70, got them to day but there is no diiferance, Is there a part of the isv which goes in the console some where?If so could this be knackered due to the heater matrix exploding?

[Deefadog]

Yes mate that's the one that went on mine! It's behind the center console

scroll down this thread, there's a pic of it - http://www.golfgtiforum.co.uk/index.php?topic=14310.0

Good luck

[Gambit]

thats the one we've been telling you to change. the actual ISV under the bonnet very rarely fails!