Hi Guys.
I know of all the usual coil pack issues; however I've never had a problem before with the Leon ones and what I've noticed recently is a very slight misfire under load.
What happens is if you driving along in 5th and put your foot flat to the floor sometimes it'll be OK, however sometimes (same goes for if you slip it to 3rd or 4th) the boost gauge spikes to 20/21psi and you can hear a slight misfire, which then clears up and the car goes as well as it normally does.
It only misfires once or twice at the most then its all go; it still runs well at the top end and doesn’t do it all the time. It only does it if you’re putting on 100% load by putting your foot flat to the floor, and it only does it at 20psi.
I have scanned the car and it has no engine faults what so ever, is there a misfire recognition block on VAG-COM?? Thinking back I think block 014 does it, but not totally sure.
I've been wondering if it's an over boosting issue or a misfire, the plugs were last done 20,000miles ago however I'm thinking of replacing them for Denso's before I go for bigger power.
Any help is much appreciated, I've removed 3 of the 4 coil packs and plugs and sprayed them with WD40 to drive out any water that may be causing it, need to removed the 4th one tomorrow. I've also WD40'd every other plug and contact whilst I was at it.
I only noticed this after the engine bay had been steam cleaned by a garage, the car had a general misfire which cleared up after a few miles, and from checking it after that noticed the current problem.
It's nothing major, but I want to get to the bottom of it ASAP.
I know of all the usual coil pack issues; however I've never had a problem before with the Leon ones and what I've noticed recently is a very slight misfire under load.
What happens is if you driving along in 5th and put your foot flat to the floor sometimes it'll be OK, however sometimes (same goes for if you slip it to 3rd or 4th) the boost gauge spikes to 20/21psi and you can hear a slight misfire, which then clears up and the car goes as well as it normally does.
It only misfires once or twice at the most then its all go; it still runs well at the top end and doesn’t do it all the time. It only does it if you’re putting on 100% load by putting your foot flat to the floor, and it only does it at 20psi.
I have scanned the car and it has no engine faults what so ever, is there a misfire recognition block on VAG-COM?? Thinking back I think block 014 does it, but not totally sure.
I've been wondering if it's an over boosting issue or a misfire, the plugs were last done 20,000miles ago however I'm thinking of replacing them for Denso's before I go for bigger power.
Any help is much appreciated, I've removed 3 of the 4 coil packs and plugs and sprayed them with WD40 to drive out any water that may be causing it, need to removed the 4th one tomorrow. I've also WD40'd every other plug and contact whilst I was at it.
I only noticed this after the engine bay had been steam cleaned by a garage, the car had a general misfire which cleared up after a few miles, and from checking it after that noticed the current problem.
It's nothing major, but I want to get to the bottom of it ASAP.
..... we had alot of rainfall awhile ago and and drove to work fine one morning and it was fine, got back from work to drive home and it wouldnt start, scanned it for faults and none was logged, i couldnt figure it out i left the car and came back to and it fired up...which i thought was strange
