THROTTLE BODY INJECTION

1989 Chevrolet Blazer

Tiny

70cj

September, 2, 2013 AT 12:44 PM

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.

FOUND 27 RELATED QUESTIONS

Throttle Body Connection

12 ANSWERS
1 IMAGE

Wire Harness

1 ANSWER

3 Answers

Tiny

Jacobandnickolas

September, 2, 2013 AT 6:30 PM

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

Tiny

70cj

September, 2, 2013 AT 10:05 PM

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

Tiny

Jacobandnickolas

September, 3, 2013 AT 6:17 PM

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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