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1990 electronic spark control ?

Discussion in 'Chevy Trucks' started by roteye38, Dec 15, 2010.

  1. roteye38

    roteye38 Member
    Messages: 40

    any body have one of these go bad if so what was the symtoms my 1990 k2500 5.7 when i went to start it up it wouldnt start it started to back fire through the throttle body and when it did start it ran like it was loaded up so i let it sit and then started it up and it was running good it did this twice for me other wise it runs good new 02 temp sensor distrutor tight new knock sensor fuel pump filter cap spark plugs & wires
  2. russ130

    russ130 Senior Member
    Messages: 204

    bad fuel???