91 astro van

10

Asked by Jun 06, 2014 at 09:12 PM about the 1991 Chevrolet Astro

Question type: Maintenance & Repair

injectors spray wide open at idle.will not run unless one injector ( out of two) leed is
unhooked.new carb/ throttle body ,brain?sometimes runs fine for 5 mi. then over fuels and
dies.please point in right direction?thankyou

4 Answers

17,365

so how many injectors ya got hooked up to dat dar carb

10

It only has two! 91 Astro but year of engine unknown. Its first Gen throttle body fuel injection system. It looks like a carb except has TWO spray nozzles on top that only spray wide open?

1 of 1 people found this helpful.
17,365

I've never seen that kind of set up, it can't be from a 1991 anything., good luck, maybe someone has seen this, not me. When you said carb and injectors I figured you were just joshing around, I guess if you are looking at it then I guess it exists.

109,985

Most likely you have a shorted injector driver in the ECM, when that happens the injectors go wide open, if it isn't fixed soon it will fry the injectors also.

1 of 1 people found this helpful.

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