1990 Chevy pickup No Fuel Issue
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1990 Chevy pickup No Fuel Issue - 5/15/2008 10:19:38 PM
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Jonesy
Posts: 3
Joined: 5/15/2008
Status: offline
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Hi new to this forum and I'm hoping someone can help.
I have had my 1990 Chevy pickup, TBI - 5.7L - 4WD, for along time and its been a great vehicle. My truck has been sitting for awhile now, like a year. In the winter I drove it too the dump to drop off some trash and noticed it was severely lacking in power. I parked the truck and forgot about it for a few months until the weather got warmer. I got in it again and the engine was running great. Until that is when I was in traffic and it just died.
I towed it back to my house and I have been trying to trouble shoot this. My engine will run very shortly if I pour a tiny bit of gas into the carbfrom a Gerry can. So that makes me think the ignition is working. I tested the fuel pressure coming from the fuel pump, dead headed, and it was about 14psi. I do not see fuel being sprayed into the carb when I crank. If I leave the ignition turned on, And I put 12Volts to one of the injectors, then fuel does start dripping into the carb. I checked for codes by the flashing lights and nothing comes up.
I should add that I have checked the Injectors fuse and it is good. I have 12V to the + side of the injector wire. Not sure how to check the wires going back to the ECU. Do I do a continuity check while cranking to Ground?
Is it possible that the ECU is telling the injectors not to spray for some reason. Any help would be appreciated.
< Message edited by Jonesy -- 5/15/2008 10:24:28 PM >
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