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Need CMP CKP CORRELATION waveform 2010 Charger 5.7L
- graywave
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7 years 3 months ago #21398
by graywave
Confirm what it's not, and fix what it is!
Need CMP CKP CORRELATION waveform 2010 Charger 5.7L was created by graywave
I have a 2010 Dodge Charger RT 5.7L which is a no start.
I uploaded a couple pics of the cmp ckp correlation i am getting right now. Suspecting the camshaft to be out of sync or maybe a crank gear key way shear issue.
A new performance camshaft was installed maybe 2 months ago by previoys tech. Car ran previously but not great and stalled a lot.
This last time it stalled on a test drive with the boss it now wont start it all. Pops in intake and exhaust and backfired 3 times in intake.
1-2 cylinders sound like dead holes during cranking.
I hopped on this diag in the middle of the problem. Boss was working on it.
Tested cam and crank sensors and both are good at pcm.
If i disconnect the cam sensor, the engine attemps to start and sometimes runs for a few seconds horribly. I think back to my nissan altima case study i posted about where the cam crank correlation was off and unplugging cmp sensor made the engine run great.
I uploaded a couple pics of the cmp ckp correlation i am getting right now. Suspecting the camshaft to be out of sync or maybe a crank gear key way shear issue.
A new performance camshaft was installed maybe 2 months ago by previoys tech. Car ran previously but not great and stalled a lot.
This last time it stalled on a test drive with the boss it now wont start it all. Pops in intake and exhaust and backfired 3 times in intake.
1-2 cylinders sound like dead holes during cranking.
I hopped on this diag in the middle of the problem. Boss was working on it.
Tested cam and crank sensors and both are good at pcm.
If i disconnect the cam sensor, the engine attemps to start and sometimes runs for a few seconds horribly. I think back to my nissan altima case study i posted about where the cam crank correlation was off and unplugging cmp sensor made the engine run great.
Confirm what it's not, and fix what it is!
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- Chad
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7 years 3 months ago #21402
by Chad
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
Replied by Chad on topic Need CMP CKP CORRELATION waveform 2010 Charger 5.7L
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.

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- graywave
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7 years 3 months ago - 7 years 3 months ago #21406
by graywave
Confirm what it's not, and fix what it is!
Replied by graywave on topic Need CMP CKP CORRELATION waveform 2010 Charger 5.7L
Thanks, unfortunately Dodge/Chrysler made a change between 2008 and 2010 and used different exciter rings. I found a bunch for 2003-2008 and all look like what you have posted. The 2010 crank and cam tooth patterns are very different.
I did find a 2012 Crysler 300 6.4L v8 Cam Crank correlation with the same tooth patterns but its at idle and the crank pattern is hard to make out. Mine are from cranking.
Another bit of History I just found out is the VCT/VVT is disabled on this particular engine. Not sure if that means 0 degrees or full advance. I'm thinking full advance
Here is the ckp/cmp correlation from a 2012 Chrysler 300 6.4L Idle Known Good. Comparing this to mine, though hard to see the crank, I would say our engine is at least 2-3 teeth off.
I did find a 2012 Crysler 300 6.4L v8 Cam Crank correlation with the same tooth patterns but its at idle and the crank pattern is hard to make out. Mine are from cranking.
Another bit of History I just found out is the VCT/VVT is disabled on this particular engine. Not sure if that means 0 degrees or full advance. I'm thinking full advance
Here is the ckp/cmp correlation from a 2012 Chrysler 300 6.4L Idle Known Good. Comparing this to mine, though hard to see the crank, I would say our engine is at least 2-3 teeth off.
Confirm what it's not, and fix what it is!
Last edit: 7 years 3 months ago by graywave.
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