1996 2.2litre MFI Engine GMC Sonoma code PO342

Have code PO342 camshaft sensor low input.Found and changed sensor,and I still have PO342.There is 12volt at sensor with key on.Any idea's????

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Changed the right sensor? Camshaft and not crankshaft. Broken wire between sensor an PCM. Bad PCM. Disconnect sensor and check for 12v between + connector pin and ground pin (not frame). Scope the signal pin for pulses.

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