91chevyTBI injectors quit fueling
03-26-2011, 07:36 PM
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91chevyTBI injectors quit fueling
The truck was running fine and after a quick trip to town I came back and the fuel pump wasn't getting fire. This ended up being a ground issue but now it's not fueling through the injectors any assistance in this area would be greatly appreciated. Thank you
03-26-2011, 08:37 PM
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Get a noid light to test the harness plugs for power to the injectors....If all of em check out fine you will need to find a way to test the injectors..... Fuel pump wont get fire? If the fuel pump is not getting proper voltage that will not pump any fuel, or if its getting low voltage it will not get proper pressure to your fuel rails, might wanna check power at the pump, if its got 12-14 volts then test fuel pressure on rails to make sure ure getting pressure....
03-26-2011, 08:39 PM
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Used to work on alot of TBI stuff way back in the day. Ground issue is common, after you fixed this you are positive now that the fuel pump does prime and is getting fuel up to the engine?
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