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Cylinders two and four not firing

Tiny
GREENPIG1
  • MEMBER
  • 2011 DODGE CHARGER
  • 158,000 MILES
I have replaced all coil and plugs also all o2 sensors crank and cam all cylinders deactivation sensors and intake gaskets fuel pump and injectors and still have no "fire" in cylinders 2 and 4. Any ideas why? Thanks in advance.
Tuesday, March 9th, 2021 AT 5:02 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Which engine do you have? The 3.6L or Hemi?

We need to check voltage at the coil on the coil control circuit. Each coil is controlled separately from the PCM.

So we need to find out if the PCM is commanding these coils on and it does this by grounding the coil so that it can fire.

https://www.2carpros.com/articles/how-to-check-wiring

Let us know if you have questions but we need to start with this as the most likely cause is the PCM.
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Wednesday, March 10th, 2021 AT 5:40 PM

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