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GM TBI kicking my butt
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<blockquote data-quote="binderbound" data-source="post: 773496" data-attributes="member: 16113"><p>Basically I took a TBI set up from a chevy pickup and put it on my IH. I did remove some wires from the harness but I'm still running 98% of the sensors. </p><p></p><p>Problems are... Fuel pump wont shut off. It runs for a second when you turn the key on. Then when you try and start it, and return the key to 'run' the fuel pump runs and runs. So much that it fills the throttle bores full to the top:wtf: I know the relay is energized by the ECM, so my guess is the ECM thinks the truck is running when its not.</p><p></p><p>Also, I got no spark at the plugs. I have 12V at the coil. I have 12V coming out of the coil going to the ESC, but nothing at the dist. It is a hybrid dist but it ran 3 days ago with duraspark and a carb.</p><p></p><p>I did all my voltage checks at the ECM and they are perfect in the key on position. My grounds are perfect. My ESC is grounded with heat sink goop on it. My realys are wired correctly. I'm running out of options in a hurry. </p><p></p><p>Any help???<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite4" alt=":mad:" title="Mad :mad:" loading="lazy" data-shortname=":mad:" /></p></blockquote><p></p>
[QUOTE="binderbound, post: 773496, member: 16113"] Basically I took a TBI set up from a chevy pickup and put it on my IH. I did remove some wires from the harness but I'm still running 98% of the sensors. Problems are... Fuel pump wont shut off. It runs for a second when you turn the key on. Then when you try and start it, and return the key to 'run' the fuel pump runs and runs. So much that it fills the throttle bores full to the top:wtf: I know the relay is energized by the ECM, so my guess is the ECM thinks the truck is running when its not. Also, I got no spark at the plugs. I have 12V at the coil. I have 12V coming out of the coil going to the ESC, but nothing at the dist. It is a hybrid dist but it ran 3 days ago with duraspark and a carb. I did all my voltage checks at the ECM and they are perfect in the key on position. My grounds are perfect. My ESC is grounded with heat sink goop on it. My realys are wired correctly. I'm running out of options in a hurry. Any help???:mad: [/QUOTE]
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