P1309 code comes back.
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Joined: Jul 2010
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From: London
P1309 code comes back.
I have found many threads about a 1309 code. I had changed the CMP and Syncro, reset the PCM. Yes I used a Syncro tool. But after 60 Ks of driving check engine and the code comes back. Any thoughts?
Logistics Pro
Joined: Jun 2009
Posts: 4,817
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From: Cedar Rapids, IA
So is it after 60k miles, or 60 kms, that the light came back on? The factory service manual suggests using a DMM (or scope) to backprobe the CMP sensor and confirm that over varying engine speed, the CMP output varies by more than 0.1Vac.
The manual continues to suggest that if the CMP voltage varies by more than 0.1Vac, replace the PCM. If not, replace the CMP. Did you happen to go with an OEM Motorcraft CMP sensor or an aftermarket?
-Rod
The manual continues to suggest that if the CMP voltage varies by more than 0.1Vac, replace the PCM. If not, replace the CMP. Did you happen to go with an OEM Motorcraft CMP sensor or an aftermarket?
-Rod
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