Volkswagen Jetta/Bora
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misfire on #2 and #3

  #1  
Old 09-18-2014, 04:33 PM
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Default misfire on #2 and #3

Help!!!! I have a 2002 Jetta with the 2.0L engine. The problem started as a mis-diagnosis on my part. I thought the cam posistioning sensor was bad, but ended up as the fuel pump. After installing the fuel pump and cam sensor, the car seem to be only running on 2 cylinders.


Here are the steps I have done with no improvement.
  • no bent valve
  • coil firing on all four
  • checked timing again
  • installed different set of injectors
  • new crank/cam sensors
I am really stumped and need as much help as I can
 
  #2  
Old 09-18-2014, 08:17 PM
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Welcome to the forum.

You need to get your motor scanned (preferably with VAG-COM\VCDS) for any error codes logged in the ecu and post them, that will save a lot of guessing.

https://volkswagenforum.com/forum/ne...gnature-34185/
 
  #3  
Old 09-18-2014, 08:55 PM
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I did scan it and it threw a mass air flow, air temp, and cam position sensor.
 
  #4  
Old 09-19-2014, 08:06 AM
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If you read I said post the codes.

https://volkswagenforum.com/forum/ne...gnature-34185/
 
  #5  
Old 09-28-2014, 11:08 AM
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Hey I figured out the issue. The valve on # 3 and 4 cylinder was bent. That is why the cam sensor was showing a code. I do thank you for the help.
 
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