Not firing on coil bank 2 wire

2005 CHRYSLER PT CRUISER
140,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
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DEWAYNE BANDY
  • MEMBER
  • 3 POSTS
i have replaced the MAP sensor, crank, sensor cam sensor, timing belt and coil still no spark out of bank 2 on coil. Did compression test no leak down all are around 150 to 160. i am about to burn it. help
Jul 18, 2020 at 11:47 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Hi,

Are you getting a signal from the PCM? I attached a picture below showing the wiring between the two. The coil that fires cylinders 2 and 3 is triggered by the PCM via the dark blue wire with a tan tracer. Check to see if you are getting a signal from the PCM. If there is no signal, check for corrosion or damage to the connector at the PCM. The PCM is on the firewall behind the power distribution box.

Let me know if this helps or if you have other questions.

Joe
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Jul 19, 2020 at 12:58 PM
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DEWAYNE BANDY
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  • 3 POSTS
i checked the connectors and wires from PCM to coil checked out good. Do you think the PCM is bad?i have new coil on it it isn't firing from 2 or 3.
Jul 20, 2020 at 1:36 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
I would check at the PCM for a signal to coil 2 (for cylinders 2 and 3). If there is no signal, then it does sound like the PCM.

Let me know.
Joe
Jul 20, 2020 at 8:55 AM
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DEWAYNE BANDY
  • MEMBER
  • 3 POSTS
i have no signal off the blue wire for 2 and 3. i have signal from the 1 and 4. i went to pull a part and got a new (used) PCM the only one they have with a turbo was a 2006. Will it work on my 2005? and will i have to have it flashed? and if so how and who can do it?
Jul 25, 2020 at 11:26 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Hi,

If it is not the same part number, it won't work. Are you able to return it? Did you check the part numbers to confirm?

Joe
Jul 26, 2020 at 6:56 AM
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