P1345 GM Code: Meaning, Causes, + Diagnosis
P1345 is a GM diagnostic trouble code that is often observed on the older 5.7L and 4.3L Vortec engines (pre-LS). These engines will be the focus of this article. Most newer engines will trigger a different code for crank/cam correlation. The crank and cam sensors always record the crank and cam position. When the positions … Read more