missfire

  1. Daniel Purcell

    Cylinders 1 and 2 missfiring

    I have a motor out of a 96 chevy 3/4 ton. 5.7 vortec. Everything is stock except I put in a 99 Tahoe computer. Cylinders 1 and 2 are missfiring. Have spark, fuel pressure is fine, and holds after turning key off. All plug wires are in correct locations. All other cylinders seem to be doing what...
Top