Tinks 0 Posted May 10, 2009 Report Share Posted May 10, 2009 Hey everyone, iv just changed the clutch on my vr, all went well and i did the job, whilst it was up on the axle stands i started it up to check everything was fine which its was the car started and stayed on. i revved it a bit then turned it off literrally a minute later i went to start it again and now it wont stay on, it starts then just dies straight away.Anyone got any ideas? starter motor is fine as it starts, fuel pump sounds like its running on turn over, theres obviously a spark cos it starts then stops. Im thinking its got to be a sensor or sum sort but its strange how its just developed from changing the clutch,any help will be appreciated, thanksMatt Link to post Share on other sites
CALICO 130 Posted May 10, 2009 Report Share Posted May 10, 2009 i had the problem but eventually mine would start turned out to be the reader coil it goes around the ignition key hole just behind the cowling bought mine from ebay from FIRCOF1 about £11 i think Link to post Share on other sites
Tinks 0 Posted May 10, 2009 Author Report Share Posted May 10, 2009 yeh i have done a search and thats been mentioned but i just cant think why its just sudenly started doing it, i did have the battery disconnected from the car over night while i waited for a new clutch do u think it could have wiped something? Link to post Share on other sites
cabrioman 6 Posted May 10, 2009 Report Share Posted May 10, 2009 could be the crank sensor or the alarm have you treid ot arm and disarm it ,,, Link to post Share on other sites
Tinks 0 Posted May 10, 2009 Author Report Share Posted May 10, 2009 my house mates got a vr6 but the earlier engine model and i swapped the crank sensors over, the plugs are the same but my sensor has a rubber seal, didn't disconnect the battery tho, still didn't start either Link to post Share on other sites
CALICO 130 Posted May 10, 2009 Report Share Posted May 10, 2009 Does your alarm switch on and off OK have you checked fuses did you reattach the Earth point for the Engine/gearbox many different things to try Link to post Share on other sites
Tinks 0 Posted May 10, 2009 Author Report Share Posted May 10, 2009 iv got an alarm on that i fitted myself which doesn't have an immobiliser but yeh it turns off and on fine, earth points are attatched and were cleaned aswell, is there anyway i can reset the ecu? Link to post Share on other sites
Tinks 0 Posted May 11, 2009 Author Report Share Posted May 11, 2009 had some progress iv got a mate who's run a diagnostic on it and its come up with fault code 17978 which is imobiliser, and the ecu also came up saying not authorised, is there anychance i have locked my ecu somehow from having it disconnected from the battery for a day? can i bypass the imobiliser? didn't even think it had one Link to post Share on other sites
Ben Seabrook 4 Posted May 11, 2009 Report Share Posted May 11, 2009 it has a vw factory immboiliser mate - which runs from a chip in the key - when you go to start the car it sends a signal to a little box in the dash and then to the ECU - this was the problem with my car in that the signal was broken somewhere along the line and the car kept cutting out - you either have to take the car back to VW to have the immboiliser re-programmed or find a friendly company you can remove the code for you - although if you don't have an aftermarket alarm this is not wise as it leaves the car unprotected Link to post Share on other sites
CALICO 130 Posted May 11, 2009 Report Share Posted May 11, 2009 reader coil is a form of immobiliser if it dosent reognise your key it immobilises but the car starts then stops. Just my opinion dont know about ECU maybe its linked somehow not needed to have mine VAG-COMMED yetwe must have been typing at the same time Ben lol Link to post Share on other sites
Tinks 0 Posted May 11, 2009 Author Report Share Posted May 11, 2009 hello mate thanks for the reply, my mate cleared all codes several time and it did the same each time, iv opened up my key and cant see a chip in it, read somewhere its a little green one but there nothing other than the light Link to post Share on other sites
Ben Seabrook 4 Posted May 11, 2009 Report Share Posted May 11, 2009 well not opened a key up to be honest so not sure but I know the sequence is meant to run from the key to the reader coil in the steering barrel to a little black box and then to the ECU to agree th code and back to the key which then starts the car - I changed the ignition coil on my car and it didn't make a difference and in the end as I also have an aftermarket immobiliser I had the sequence removed and now the car starts and runs perfectly - VW will be able to re-program the key etc but will charge you a few quid to do it I would think Link to post Share on other sites
Tinks 0 Posted May 11, 2009 Author Report Share Posted May 11, 2009 just opened my key up looked a bit harder and found the chip, do u know how to remove the imobiliser itself or can that not be done? Link to post Share on other sites
Ben Seabrook 4 Posted May 11, 2009 Report Share Posted May 11, 2009 can't be done mate only VW themselves or someone who can re-program the ECU can remove it Link to post Share on other sites
Tinks 0 Posted May 11, 2009 Author Report Share Posted May 11, 2009 oh bloody hell lol, is it just a case of removing the ecu and giving them that along with the key? Link to post Share on other sites
Ben Seabrook 4 Posted May 11, 2009 Report Share Posted May 11, 2009 nah mate they will need the car I would imagine as they prob have to sort out all the seperate bits - do you have an aftermarket immobiliser on the car ? Link to post Share on other sites
Tinks 0 Posted May 11, 2009 Author Report Share Posted May 11, 2009 nope the alarm iv got fitted is an ebay jobby, but even with the fuse out the car still does the same thing, its just for central locking remotely really Link to post Share on other sites
Ben Seabrook 4 Posted May 11, 2009 Report Share Posted May 11, 2009 ah ok then well you don't really want someone else just to remove the code then as said before it will leave your car very open to being knicked !! so in this case I would take it to VW mate Link to post Share on other sites
Tinks 0 Posted May 11, 2009 Author Report Share Posted May 11, 2009 yep just such a pain in the arse getting it there, found this http://cgi.ebay.co.uk/MK3-GOLF-VR6-ECU-WITH-CHIPPED-KEY-TRANSPONDER-BOX_W0QQitemZ280342322194QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item280342322194&_trksid=p3286.c0.m14&_trkparms=72%3A1683%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318%7C301%3A1%7C293%3A1%7C294%3A50 Link to post Share on other sites
CALICO 130 Posted May 11, 2009 Report Share Posted May 11, 2009 i think you might need the barrel as well as the key tho Link to post Share on other sites
Tinks 0 Posted May 11, 2009 Author Report Share Posted May 11, 2009 could i not just take the chip out of that key then put it in my key? i might try like u said calico the pick up ring first as its the cheapest option Link to post Share on other sites
ingham 5 Posted May 12, 2009 Report Share Posted May 12, 2009 ive had same problem to you ,i had to take it to dealer to reset code on immobilizer , you can drive it there if you reset ecu you can run engine once as it will lock ecu once turned off , reset ecu by disconnecting batt for 15 mins, its an easy job for vw computer, my code reader wouldnt do it only vw can Link to post Share on other sites
CALICO 130 Posted May 12, 2009 Report Share Posted May 12, 2009 £9 +POSTAGE £2.34 ON EBAY HE ALSO DOES THE TRANSPONDER BOX AS WELL FOR EXTRA COST AS WELL "FIRCOF1" IS HIS TRADING NAME Goodluck Link to post Share on other sites
MattVW 0 Posted May 12, 2009 Report Share Posted May 12, 2009 I had the same problem on my old VR. Engine would occasionally cut out when I'd go fast round a corner (nice and safe). Found out that the weight of all extra keys I had on my car key ring was moving the key in the ignition enough to move the chip away from the sensor in the barrel, and this would cut my engine. Took all my keys off my keyring and gave the ignition key a wiggle whilst in the barrel - seemed to "fix" it, went on for years like that. Now I never attach any keys to my ignition key. Dunno if that's of any use to you, just throwing it out there. Link to post Share on other sites
Tinks 0 Posted May 13, 2009 Author Report Share Posted May 13, 2009 sorted had to tow it to golf to get it done but they reset the ecu imobiliser code, got it back and the battery light was on turns out id put the alternator live to earth...woops, that might be why it lost its code, its fine now and im so happy iv got my car back Link to post Share on other sites
Recommended Posts