Recent content by chairmnofthboard

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    87 tbi 350 popping at idle and running rich

    Fuel pop from the exhaust sounds like injectors. You're over fueling. I had the same problem. It was bad injectors. Turn on the key and see if any fuel gets past the injectors. If the injectors leak or spray, the injectors are bad.
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    1987 Chevy v10 fires but won't stay running

    Here are things I would think would cause the problem. fuel pump, fuel pump relay, icm (poor quality), pickup coil, coil, ignition (key), coolant temp sender (on manifold), loose cable/wire. Are you getting any codes? What I learned with these TBI's, Is to use the best quality parts you can...
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    Lacking power, 87 Sierra 5.7l TBI

    I had low power on my 87 tbi. Everything I did helped it regain it's lost power. It wasn't one thing, it was multiple things stacking up. The two/three things I can think of that made the biggest difference in power were the ICM and intake gasket/throttle body rebuild. The ICM would only run...
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    TBI symptoms changed (new thread to reflect new problems)

    My 87 would buck and die at hwy speeds (cruising). It would set code 34 (MAP). I replaced the MAP and EGR with an ACdelco unit and the problem went away. I would also get a random stall around town and I replaced the ICM with a ACdelco (D1943A) and a ACdelco pickup coil (D1987) and that solved...
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    87' R10 TBI 350 shuts off when driving. HeLP

    Have you considered a bad ignition switch?
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    TBI code 32 EGR

    Hello everybody. I thought I would make a post to help people in the future. I recently triggered a code 32 (EGR). I started getting the SES light at cruising speeds on the hwy everyday. My o2 sensor, egr, icm, and EGR are all new with ACdelco, so I knew that wasn't the problem. All my tests...
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