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P0346 Diagnostic Trouble Code Discussion for November 2014

Camshaft Position Sensor 'A' Signal Performance (Bank 2)

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Trouble Ticket Help Requests for DTC P0346
Help Request Posted
2009 Ford F-150 Platinum 5.4L MIL Lamp on VIN: 1FTPW14V09
P0346: Cmp circuit sensor a range/performance b2. ... history codes. I have never seen both sensors show this much noise before. The interference spikes from the alternator corresponds to the spike in the CMP signals on both sensors. The interference output on the alternator is around .5v total +/- With the...
November 24, 2014