MK5 Golf GTI
All Things Mk5 => How to Guides / Troubleshooting => Topic started by: bennyx_o on May 06, 2015, 09:53:37 pm
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Evening. Bit of an intermittent issue with my GTI.
The CEL has been coming on randomly for a couple of months now, with no adverse effect in running except one occasion; I was coming up to a set of lights that were changing, so I accelerated to try make them. The car hesitated, CEL started flashing and car started running rough with a slight smell if petrol. Limped the car home and left it overnight. When I started it the next morning, it started and ran fine, and has done ever since. The CEL cleared itself also.
I had the car in for an oil service today and had the PCV & can follower replaced also. When the car was scanned it showed P0300 & P0301. (Random cylinder misfire and Cylinder 1 misfire)
Coilpacks were replaced under warranty in Jan 14. Don't think it's coilpack because it's so intermittent, but cupid he wrong (it's happened before! :D) Mechanic thinks injector could need replaced, and I'm thinking the same thing too.
Anyone here ever have anything similar happen? Is it possible that it could be the coilpack?
Cheers
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I have just had the same issue on mine. I had random misfires on 2 cylinders about 2 weeks after a full service and new plugs installed. Had to limp it home which was a PITA on dual carriageways with virtually no power :scared:
I pulled all the coil packs to have a look and 2 were in shocking condition but 2 seemed fine which explained the 2 random misfires, swapped the packs to the other cylinders and the misfires moved too. I replaced them all with new Bosche ones just to be certain they were all good, not had a problem since.
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Sounds promising. I was looking at upgrading the coils anyway, so may try that first. Cheaper than injectors too :D