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Runs great, but timing will not set

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Old March 5th, 2018, 2:54 PM
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Default Runs great, but timing will not set
I am getting p1345 code for crank/cam correlation.i did not have this code prior to replacing the distributor...now the timing is -20 can retard with old and new distributor. Took the truck to 2 different mechanics to have timing set and they can’t get it lower than -20.

Any ideas on what else could cause this issue?

The truck starts and runs great!
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Old March 5th, 2018, 4:16 PM
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Is it maxed out as far as won't go any further? Pull the distributor, and rotate it one gear. That will give you a little more base movement
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Old March 5th, 2018, 6:20 PM
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I have tried that, multiple teeth in both directions ... I’m wondering if the code means something other than timing
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Old March 5th, 2018, 8:07 PM
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https://www.engine-codes.com/p1345_chevrolet.html Try this
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Old March 12th, 2018, 6:38 PM
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-20 cam retard, what damage will it cause?
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Old March 20th, 2018, 7:37 PM
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I read some where that when the distributor is removed it has to be re-calibrated usually at dealer don't remember what year that pertains to.
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