It will only start when i put gasin top ofthrottle body and run for 5 seconds then die. I have bypasseid the fuel pump

Asked by May 13, 2017 at 05:50 AM about the 1998 Chevrolet C/K 1500

Question type: Maintenance & Repair

Put on inline fuel pump and put hose down in tank

3 Answers

127,105

Did you check the fuel regulator to see if that is working

3 people found this helpful.
125,595

You should also check the injectors for power and trigger signals.

1 people found this helpful.
90,475

So yes, check the fuel injectors plugins with a noid light to see if there is a injection pulse. Otherwise you have a fuel pressure issue, I don't no why you would bypass the fuel pump, you need fuel pressure for it to run. Fuel pressure should be 56 to 63 lbs. Once you build up fuel pressure on a fuel pressure gauge, turn the key off and let it sit. The fuel pressure should not drop more than 5 lbs in 3 minutes. If it does, then there is a problem with the spider injection leaking, and would need to be replaced.

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