Trislander Posted February 28, 2014 Report Posted February 28, 2014 I think this maybe mass air but all of a sudden today my 1.9tdi has become very sluggish in 3rd and 4th Any suggestions? Quote
Trislander Posted February 28, 2014 Author Report Posted February 28, 2014 Ok an update....After a couple of hours driving a 10 blast down the motorway it seemed to return to normal for about 90 min happy day I thinkI then switch engine off to get diesel start up again and the problem returns DAMN!!!Take it on motorway again but this time still same problem. I keep plodding away for about 30 minutes and it gets gradually worse and almost feels like I'm driving on wobbly wheels .I unplug maf and drive for a bit and runs about the same plug it back in and still no joyNow I will try buy new maf tomorrow BUT something is telling me its not that(I'm no mechanic) but with the wobbling feeling I'm thinking maybe more to do with engine or gearbox????? It's ok rolling in neutralI'm very confused and its battering my head and wallet Quote
Trislander Posted February 28, 2014 Author Report Posted February 28, 2014 Hmmmmm just thinking my mechanic moved the fuel filter earlier today to get to the speed sensor could moving it have maybe caused this issue as it wasn't an issue before it went on the ramp Quote
insanitybeard Posted March 1, 2014 Report Posted March 1, 2014 I can't imagine any power loss issues like you describe to be caused by a manual gearbox fault, the gearbox will either transmit drive or it won't, unless the clutch is slipping, but I'd expect that to be apparent in the lower gears. You need to determine if it's a mechanical fault or electrical, if it comes and goes I'm thinking it's more likely to be electrical or related to turbo boost control than a mechanical issue. Can you find out if it's stored any fault codes? Quote
Trislander Posted March 1, 2014 Author Report Posted March 1, 2014 I've plugged into a fault code reader and its come up no faults found Quote
chrispb123456 Posted March 1, 2014 Report Posted March 1, 2014 Unplug the MAF sensor then drive the car, see if it makes it worse then recheck for fault codes as it should have registered a fault. Quote
Trislander Posted March 1, 2014 Author Report Posted March 1, 2014 At garage right now he's driving it with vagcomBought mafRuns same with it plugged outWill update soon Quote
Trislander Posted March 1, 2014 Author Report Posted March 1, 2014 Changed maf slight improvementBut shaking while driving still there mechanic thinks its the gear box :-( Quote
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