P0340 and P0344 engine codes

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Jun 9, 2025 | 12:20 PM

glendonr1

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P0340 and P0344 engine codes

I recently replaced the timing chain on my 2013 Lincoln with the 3.7L, V6 engine. The car started up but threw a P0340 and P0344 engine code. I replaced the two camshaft sensors, but the codes are still there. If the timing was off, the car would be throwing way more codes, am I right on that? Do you have any pointers on how to fix this issue? What fuses do I check that run the camshaft sensors? Any guidance would be greatly appreciated. Thanks

Jun 9, 2025 | 02:55 PM

hanky

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If you did not have any codes before replacing parts, you might want to recheck your work

Jun 9, 2025 | 03:07 PM

heiko

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From: California

12V or 5V reference voltage doesn't matter, it gets from the PCM, not a dedicated fuse. So simply recheck the connection and wiring between your PCM and the sensors. Use voltmeter and ohmmeter to verify.

Jun 10, 2025 | 02:16 PM

glendonr1

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Copy that. I didn't have the code before the repair; I must have a loose connection somewhere.

Jun 10, 2025 | 02:17 PM

glendonr1

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Thanks for the guidance.

Jun 11, 2025 | 12:03 PM

hanky

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There are times when we plug a plug onto/into a component the pin(s) sometimes back out of the plug to result in an intermittent connection. A good idea to make this a part of your recheck procedure.

Jun 24, 2025 | 04:05 PM

glendonr1

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Thank you for the guidance. Would you advise a little dielectric gel in the connectors to help with the overall connectivity? Do you have any recommendations? Thanks