1989 CHEVROLET BLAZER THROTTLE BODY INJECTION

  • Tiny
  • 70cj
  • 1989 Chevrolet Blazer
  • 120,000 miles

I recently did a body swap on a k5 replacing the blazer body with a 1970 cj5 I cut 4ft off the rear of the frame and installed a new fuel tank and ran new lines filter, everything. The CPU is hooked up and I used wiring diagrams to wire the ignition system. Now the fuel is making a round trip back to the tank and the engin still wont crank over. Ive already cleaned the injectors.

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Monday, September 2nd, 2013 AT 12:44 PM

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  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,409 posts

If the fuel is running directly back to the fuel tank, it sounds like the regulator is bad. Have you checked that?

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Monday, September 2nd, 2013 AT 6:30 PM
  • Tiny
  • 70cj
  • Member

It doesn't use a fuel regulator my best guess is that I might have to clean the tbi it ran when the project began about 3 months ago

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Monday, September 2nd, 2013 AT 10:05 PM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,409 posts

How are you regulating fuel pressure? If the fuel is running back to the tank, there will be little to no fuel pressure at the rail.

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Tuesday, September 3rd, 2013 AT 6:17 PM

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