86 chevy el camino 4.3 v6

Asked by Guru8DR3 May 27, 2017 at 10:51 PM about the 1986 Chevrolet El Camino RWD

Question type: Maintenance & Repair

I got a 1986 chevy el camino 4.3 v6 tbi injected I'm
having a problem it will turn on 1st Turn no
problem will idle right timing it right but once I
push the gas it bogs down what. Can it be please
note I have put a new fuel pumps fuel filter a whole
new distrubitor with new wires and spark plugs
new alternator the wire harness was cut up so I
replaced the whole engine harness has brand new
injectors I replaced the throttle body carb. And it
turned on reved. Up good no problems 3 days later
starts doing the same thing what can it be please
help

3 Answers
221,015

Rowefast answered 6 years ago

Check out the EGR Valve. It may be stuck open from carbon build up. Also was the TBI new or rebuilt when it was put on? If not, it could be the fuel regulator in the TBI needing to be rebuilt. You could check by hooking up a fuel pressure gauge in the fuel line at the TBI. Fuel pressure should be 9 to 13 lbs. Then rev the engine up, if the fuel pressure drops below range, then the fuel regulator is in need of repair.

2 people found this helpful.
Mark helpful

Guru8DR3 answered 6 years ago

The tbi is brand new as well as the fuel pressure regulator the egr valve looks real.old

Mark helpful
221,015

Rowefast answered 6 years ago

The fuel regulator is on top of the TBI. Check out the EGR Valve. Also check for vacuum leaks.

Mark helpful

Your Answer:

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