MK3 Starting Problem - Please Help !!!!

[garethmk1]

Dear All,

Got a problem with my brothers Mk3 ABF 16v.  It started a few months back with the car randomly cutting out, to cut a long story short he bought an S3 and the car is home with me for the time being.  It sat on the drive for about 4 weeks, then one day whilst I was running it on the drive it cut out ... and has not started since.  Initially I changed the coil as there was no spark coming out of the coil, no difference, the engine is definately getting fuel, but just kept turning over without firing. I then changed the ECU relay for a GSF item, the ABF had 5 pins the GSF had 4 pins, that didn't work ... I have now bought a genuine VW ABF ECU relay, have fitted that, and having just charged the battery, the car won't even turn over ?? I checked the fuses, the pump is "buzzing up" .... Just scratching my head at the moment - could it be the crank sensor ?? The problem now is that the car won't even turn over so I don't even know whether the geniuine relay has cured the matter.

Can anyone be of any assistance ? I'd be very very grateful.

Regards,

Gareth

[madhouse]

Immobiliser issue? Has it a factory or aftermarket alarm/immobiliser? This may well be cutting various power sources as part of it's anti theft bit?? 

[filthy]

Sounds like the Crank sensor- same symptoms mine had when sensor was goosed-get it scanned, that should tell you 

[tarun_gti_anniversary]

Dear All,

Got a problem with my brothers Mk3 ABF 16v.  It started a few months back with the car randomly cutting out, to cut a long story short he bought an S3 and the car is home with me for the time being.  It sat on the drive for about 4 weeks, then one day whilst I was running it on the drive it cut out ... and has not started since.  Initially I changed the coil as there was no spark coming out of the coil, no difference, the engine is definately getting fuel, but just kept turning over without firing. I then changed the ECU relay for a GSF item, the ABF had 5 pins the GSF had 4 pins, that didn't work ... I have now bought a genuine VW ABF ECU relay, have fitted that, and having just charged the battery, the car won't even turn over ?? I checked the fuses, the pump is "buzzing up" .... Just scratching my head at the moment - could it be the crank sensor ?? The problem now is that the car won't even turn over so I don't even know whether the geniuine relay has cured the matter.

Can anyone be of any assistance ? I'd be very very grateful.

Regards,

Gareth

hello matey..i had the xact same problem!...i had battery drain on mine and it would never over once the battery was charged!..the crack sensor was changed and it didnt make ne diffo..i found the the hall sensor and ecu relay 30 did the trick after spending hundreds n thousands on the car lol..god luck mate!! i no this problems a b!tch 2 fix..!