1997 Chevy Blazer

Hello,

Here is the code def.

P1345. Camshaft to crankshaft position correlation fault.

This code is typically set because the camshaft sensor is not properly synchronized with the crankshaft sensor. Wiring and/or connector faults with either the camshaft or crankshaft sensors can set this code. A sensor tester or multimeter can be used to verify that a proper signal is reaching the engine computer. If the distributor has been removed and not reset or reinstalled properly, use a scan tool to monitor the "Cam Counts" and set them as close to zero as possible by adjusting or repositioning the distributor.

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