Misfire on 1 and 3

Tiny
ZELLIE7
  • MEMBER
  • 2008 VOLKSWAGEN PASSAT
  • 58,000 MILES
I just changed the coil on 3 and all spark plugs and now the code is reading 1 and 3 are misfiring again. What does it mean, that 3 is broken again. Thank you
Wednesday, December 28th, 2011 AT 8:49 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check and test the cam and crankshaft sensor-also injector 1/3
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Wednesday, December 28th, 2011 AT 8:57 PM
Tiny
F4I_GUY
  • MECHANIC
  • 3,302 POSTS
You need to replace #1 and #3 injector (Personally I would replace all four because you must remove the intake manifold in order to do this job.)

Also, once you remove the intake manifold you must to a carbon clean on the intake valves, these are both causing the vehicle to mis-fire, if the ignition coils and spark plugs tested fine.
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Saturday, January 21st, 2012 AT 11:31 PM

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