MJ Vr6 79 Posted November 26, 2007 Report Share Posted November 26, 2007 Hi peeps, totally different question non related to a VR6, My other GTI MK3 has a mind of its own, lol. There is a problem with the vehicle, but we just cant work out what it is, What happens is that the car starts perfectly in the morning, you drive the vehicle for say an hour, park up for ten minutes, then come back to the car to re-start and it just wont start, it just spins, and not crank fully over, If you leave it for half hour and turn it over it will start!!! Had the rac out, they assumed it was the coil due to it spanking out High resistance and that no power was going to dizzy from coil, but power was goin to Coil, So i done full service-Plugs oil dizzy Nu coil etc, drove the car for a bit and the same F+++ing thing happened again...Leave the car for half hour and it bloody starts!!!GRRRRRRRR!!!! Changed the crank sensor, still aint made no difference whatsoeva(problem still there)... Posted the same kinda mail weeks ago on edt38-Everyone said coil...BUT IT'S NOT THAT!!! Anyone got any ideas?? Plugged in the diagnostics yesterday, The diagnoistics machine thinks that the ecu is not connected!!! What do i do? Any one know? Dnt think its the ECU...Swapped relays over with VR coz its identical... Could it be dodgy Fusebox??? Link to post Share on other sites
kilokilla 0 Posted November 26, 2007 Report Share Posted November 26, 2007 right im not sure excactly what you mean does it spin over really fast like there is no compression if so its more than likely your oil pump basically they wear inside so when oil is hot and thinner it doesnt pump up eneough oil to fill hydraulic lifters hence valves dont work properly and you get no compression ive had this on a few mk3 8v and 16v if this is not what its doing try explaining a little more excactly what the starting is like .Carl. Link to post Share on other sites
MJ Vr6 79 Posted November 26, 2007 Author Report Share Posted November 26, 2007 right im not sure excactly what you mean does it spin over really fast like there is no compression if so its more than likely your oil pump basically they wear inside so when oil is hot and thinner it doesnt pump up eneough oil to fill hydraulic lifters hence valves dont work properly and you get no compression ive had this on a few mk3 8v and 16v if this is not what its doing try explaining a little more excactly what the starting is like .Carl.Carl, thanks for getting back to me,apparently its an electrical problem sum where, not mechanical, when you go to re-start the car, all the dash lights come up, and the car just spins on start up, doesnt crank fully+intially when you turn the key, you do not hear the fuel pump go onn??? In the mornin like i said no problems, but then say youve parked up for 10min, go back to the car to start, it wnt start... Link to post Share on other sites
richievr 1 Posted November 26, 2007 Report Share Posted November 26, 2007 check the fuel pump relay.quite a few mk3's and mk4's suffer from problems with those..will be in the bottom right location in the fuse box with part number 191 906 383C on the side of it.my sisters car was very similar to that but that just stalled driving along then wouldn't restart. a new relay fixed that for her :-d and was quite cheap...ish.... Link to post Share on other sites
MJ Vr6 79 Posted November 26, 2007 Author Report Share Posted November 26, 2007 check the fuel pump relay.quite a few mk3's and mk4's suffer from problems with those..will be in the bottom right location in the fuse box with part number 191 906 383C on the side of it.my sisters car was very similar to that but that just stalled driving along then wouldn't restart. a new relay fixed that for her :-d and was quite cheap...ish....M8y, swapped relay from my vr6, they are both the same, its still not starting, no power from coil, but power to coil... Now thinkin perhaps it the ecu...I hope it doesnt end up being that... Link to post Share on other sites
kilokilla 0 Posted November 27, 2007 Report Share Posted November 27, 2007 what year is your gti mate if its an early mk3 it could be down to your distributor if its after m reg ie n onwards its less likely to be that.Carl. Link to post Share on other sites
MJ Vr6 79 Posted November 27, 2007 Author Report Share Posted November 27, 2007 what year is your gti mate if its an early mk3 it could be down to your distributor if its after m reg ie n onwards its less likely to be that.Carl.ECU at fault, went to middx tuning in Harrow, fault was found on ECU-Sent off for repair with a years guarantee once fixed!! Thankx peeps for all your feedback, Much appreciated! Link to post Share on other sites
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