We have tried the new pedal but still have an intermittent fault where it misfires or doesn't rev We are assuming that the pedals are not bat fault so the problem is elsewhere. Anyone have any pointers or tests where to start looking?
Bugger, that's not the result we wanted. Pedal was all working fine when removed, so hopefully not that. Do you have a clutch switch connected or linked out? Mate had it on a mk5 or 6 where pointed to pedal but was the loom to pedal. Water ingress on loom or ecu maybe? Really just firing off things popping in my head, probably not much help so far.
get it plugged into vagcom next, see what the faults say. check through the ecu measuring blocks as well that'll tell you if all the sensors are reading correctly real time
Sorry for the delay working 12 hour shifts takes up time and makes you forget stuff lol Thanks for the reply the boy will be putting it on vag com tomorrow so will update as and when
Right it has been on vagcom and here are the results. We are sure the problem is the camshaft sensor but can anyone explain the other faults as we think it is the sensors that we do not run e.g. air system, launch control? Is there a part number/make of sensor that is oem without the vw tax? As is the norm thank you in advance
if you clear the codes and try to drive the car do all the codes come back? those are all valid codes nothing you can ignore. or is one shot before clearing and the other after? if so yeah, start with cam sensor and work from there. the terminal 30 one may be a clue, check the wiring to ecu has been done properly. while you're in there check the loom over especially to the coilpacks for splitting, they all do it. so common VW made a repair loom for it 1J0971658L or M. the cam sensor wiring wants looking at too obviously plus it has a common feed with the map sensor as well
Thanks for all the info we will start with the cam sensor as you say. Will look into the repair loom as I know the insulation was cracked on some wires. Not 100% certain but I think the only fault that came back was the cam sensor will check with my boy. Do you have a part number for a cam sensor as we were not sure if a Bosch one would be ok?
Is this the sort of thing we need? https://www.ebay.co.uk/itm/32479228...QZ1ZFD2imsDJP35bfOOKmE15FaGpnMswaAlZiEALw_wcB
no thats just wire tails, you want the full repair kit i mention as it'll replace whole coilpack wiring back to ecu. trouble with these looms when they go it cracks a long way up under all the tape not just the coil plug ends cam sensor is 058905161B
Thanks again it's just that when I Google the part number all that comes up is the tails except for a U.S. kit. I will refine the search. Thanks again
you'll get more results for 1J0971658M than L, as its the more popular. M has the oil level/temp sensor wiring in which most of them have. L hasn't got it, and VW dropped it a long time ago. Loads of the M version on ebay, though you'll have to import them from europe. AwesomeGTI used to sell them but not any more it seems check your loom first though, it might already have been done
Thanks for the info again I came up with more European and USA items than UK lol as well Cam sensor coming tomorrow so as mentioned will try that first. For the record the other codes did not return immediately just the cam fault. Thanks again
Hi Been busy with other things. You say the cam sensor shares a common feed with the map sensor. Where does the feed come from before both sensors (ecu) so I have more of an idea where I will be chasing the wires tomorrow?
It's the purple/green on both which goes back to ecu pin 98. There's a crimped joint somewhere in the loom where they get tapped together. You should see voltage on this pin, iirc 5v
Thought I would share latest update as car has been running three days and seems ok. Started by removing sheathing from cam sensor near plug. Then moved to map sensor when I discovered this. The wire to the map sensor had been rubbing on the alternator pulley and had worn through to bare wire. It must have been randomly shorting out causing the random misfire and in one case total failure. I would not have looked at this cable had rubjonny not advised it shared the same feed as the cam sensor (threw up cam fault code) I cut out the bad part and soldered them back together and re routed over the intercooler pipe to prevent it happening again. Many thanks for all the help, parts and advice once again
