Follow up to mis fire code post

'99 Yukon 5.7 After doing all the obvious tune up stuff, TPS and Crank sensors the light throttle misfire was caused by the distributor. Symptom was a light throttle cruise miss at 1500 rpm, idle smooth and WFO
ran like a champ. Miss triggered P0300, P0307 codes and a #2 cylinder miss history. New distributor was the cure.

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