jimbobery
S3
- Joined
- May 6, 2008
- Messages
- 257
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- Points
- 16
Hi,
I had my car vagcom'd a month ago and it had some misfire codes logged, but because I hadn't had the car long I cleared them down to see if they reappeared...
... and they have:
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-10 - - - Intermittent
16687 - Cylinder 3 Misfire Detected
P0303 - 35-10 - - - Intermittent
16688 - Cylinder 4 Misfire Detected
P0304 - 35-10 - - - Intermittent
16686 - Cylinder 2 Misfire Detected
P0302 - 35-10 - - - Intermittent
I also did some real-time logging for misfires (think it was measuring blocks 015 and 016), and over a 10 min drive cylinder 2 and 3 misfired briefly a few times.
The thing is, the car doesn't feel like it misfires at all, it accelerates through the rev range really smoothly, no apparent loss of power etc.
I have some other slight issues with the car but not sure if they'd be related:
· On cold start-up the revs fluctuate by 30-50rpm, but only for about a minute, I guess during the EGR period?
· Water temp will get up to 90 after a while, but if I'm cruising at 50-60 for a while with no hard acceleration the temp drops right back to 60, thermostat stuck open?
So I've spent ages reading posts about misfires and coilpacks and in all of them when a coilpack dies the misfires are really noticeable; but my car seems fine?
Any ideas about what to do would be great? I could just leave it but would rather fix it now before it proper breaks!
I had my car vagcom'd a month ago and it had some misfire codes logged, but because I hadn't had the car long I cleared them down to see if they reappeared...
... and they have:
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-10 - - - Intermittent
16687 - Cylinder 3 Misfire Detected
P0303 - 35-10 - - - Intermittent
16688 - Cylinder 4 Misfire Detected
P0304 - 35-10 - - - Intermittent
16686 - Cylinder 2 Misfire Detected
P0302 - 35-10 - - - Intermittent
I also did some real-time logging for misfires (think it was measuring blocks 015 and 016), and over a 10 min drive cylinder 2 and 3 misfired briefly a few times.
The thing is, the car doesn't feel like it misfires at all, it accelerates through the rev range really smoothly, no apparent loss of power etc.
I have some other slight issues with the car but not sure if they'd be related:
· On cold start-up the revs fluctuate by 30-50rpm, but only for about a minute, I guess during the EGR period?
· Water temp will get up to 90 after a while, but if I'm cruising at 50-60 for a while with no hard acceleration the temp drops right back to 60, thermostat stuck open?
So I've spent ages reading posts about misfires and coilpacks and in all of them when a coilpack dies the misfires are really noticeable; but my car seems fine?
Any ideas about what to do would be great? I could just leave it but would rather fix it now before it proper breaks!