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2.0 TFSI BWJ 240 Idle Misfire
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Topic: 2.0 TFSI BWJ 240 Idle Misfire (Read 9988 times)
n0ble
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2.0 TFSI BWJ 240 Idle Misfire
« on: June 21, 2014, 08:19:01 PM »
Hey All,
This isn't really causing me an issue, but i would like to get to the bottom of it.
The car seems to misfire on idle once left for a few minutes and misfire counter kicks in and always registers on the same cylinder.
I have had plugs and coils replaced and also swapped injectors around, the car has also had a carbon clean and still i get misfires on the same cylinder on idle... Any ideas?
I'm hoping that the rod on that piston is not very very slightly bent or something.
Thanks
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vagenwerk
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Re: 2.0 TFSI BWJ 240 Idle Misfire
« Reply #1 on: June 22, 2014, 06:22:16 AM »
compression test ?
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n0ble
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Re:
« Reply #2 on: June 22, 2014, 07:28:05 AM »
Full leak down/compression test has been done... All good
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vagenwerk
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Re: 2.0 TFSI BWJ 240 Idle Misfire
« Reply #3 on: June 24, 2014, 08:00:42 AM »
what about values ?
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n0ble
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Re:
« Reply #4 on: June 24, 2014, 02:37:10 PM »
I had them replaced with the S3 valves as original valves were causing misfires at higher rpm on higher boost due to valve float.
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adam-
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Re: 2.0 TFSI BWJ 240 Idle Misfire
« Reply #5 on: June 24, 2014, 03:35:11 PM »
Does it only do it once up to temp? Tried gapping that one plug a little less? A little more dwell time on the coils, maybe?
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nokiafix
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Re: 2.0 TFSI BWJ 240 Idle Misfire
« Reply #6 on: January 12, 2015, 12:48:58 PM »
What was the issue N0ble? I have seen this exact same issue from duff injectors which lead to a melted piston on the same cylinder when running 1.7bar at 460hp..
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majorahole
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Re: 2.0 TFSI BWJ 240 Idle Misfire
« Reply #7 on: February 09, 2015, 06:59:37 PM »
+1 it could help future users too, thanks
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4ringpieces
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Re: 2.0 TFSI BWJ 240 Idle Misfire
« Reply #8 on: February 19, 2015, 10:46:00 AM »
I've seen a couple of occurrence's where the ecu was at fault on these, swap it out with a known good one to be sure
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vwaudiguy
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Re: 2.0 TFSI BWJ 240 Idle Misfire
« Reply #9 on: February 19, 2015, 06:33:33 PM »
Why does a bent rod come to mind? Ever ingest water?
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"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."
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