No announcement yet.

302 EFI gas Trailblazer start/high speed/low idle issue

  • Filter
  • Time
  • Show
Clear All
new posts

  • 302 EFI gas Trailblazer start/high speed/low idle issue

    I can't find info on this problem: 3 1/4 year old TB 302 EFI with 105 hours on the clock. In the last month or so when starting from cold, engine goes to high speed for just 3 seconds then right to idle (when new it would go to high speed for about 15 or 20 seconds before settling down to idle the way it's supposed to). Otherwise unit works perfectly, goes to high speed then back down to idle 15 /20 seconds after welding/or electrical load is terminated. Problem at start-up only. Any ideas?? Miller factory tech helpful but unit just out of warranty. Thanks for any insight on this.

  • #2
    Reset the ecm on the engine, kinda have to do that once in a while


    • #3
      Thanks Cruizer. I remember reading awhile ago somewhere on the forum where you explained how to reset the engine ECM but can't find it. Is it just a remove the starting battery for a few seconds sorta thing?