My 94 sierra will not start all of the time and dies some times when driving. when it will not start the throttle body injectors are not spraying fuel but the fuel pump is working and there is fuel pressure and the throttle body it just dose not spray fuel. what would cause the injectors not to fire.
The injectors are fired thru the engine cotrol module but it gets its signal to fire from the pick-up located inside the distributor if you are loosing injector pulse only the ignition module is bad if you are also loosing spark when you loose injector pulse your pick up is causing the problem if you replace the pick-up i recomend you change the ignition module when doing so because they work together and you have to remove the distributor to change the pick-up
Your quad driver in the computer or a bad module in the distributor!
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My 1995 Chevy 1500 has fuel pressure but the injectors won't spray when I pour fuel in it fires up what is causing this
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