ehicle came in for MIL on, tech at time found code P0341 CMP Sensor A and CKP Sensor Incorrect Phase Detected, after checking all bulletins and TSB's, and also checking information on Identifix, tech at time came to conclusion of timing chain stretched, he replaced timing chain, guides, tensioner, and cam phaser, put back together and code still on, thinking it was maybe a bad sensor, known good sensors were installed and still MIL on, removed VTC actuator and checked, VTC was sticking, replaced and cleaned all debris if any out, removed cover on side of head and cleaned out the serviceable screen. Still MIL on, scoped all three sensors at PCM. all looks good, all marks are lined up, attached is a waveform, if someone with good knowledge came shine some light on what to check next, after the sensors were scoped and everything looks good we are leaning towards bad PCM. vehicle runs fine idle normal no drivability problems.

all timing marks have been checked. [2002 Honda CR-V EX, ECM/Inputs/Outputs Waveform]

top waveform ckp middle waveform cmp a bottom waveform cmp b/tdc

Michael Pereversoff
Technician
Civic Auto Repair
Nelson, British Columbia, Canada

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