C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old May 11, 2021 | 04:13 PM
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Backinblack91's Avatar
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Default No power

Hi all,
I recently (1 year ago) got my first corvette a 91six speed. I have recently been having problems with my power, it idles fine and revs ok with no load, but if I try an drive and accelerat even at low speeds it wants to stall out or I dont have power. So far I have replaced the spark plugs and wires I did have a bit of an arcing problem I have changed the fuel filter as well as the absolute pressure manifold sensor. I don't think my fuel pump is the problem, but it could be. Are there any other quirks I should know about or any direction I should go what is my problem???😳😬
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Old May 11, 2021 | 11:36 PM
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You need to put a fuel pressure gauge on it. Many parts stores will lend one for free.
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Old May 13, 2021 | 07:53 AM
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A few other things to look into.
1. The rubber fuel line in the tank going to the pump, could be lose or the plastic clamp broken = loss of fuel pressure.
2. Make sure your cats are not stopped up.
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Old May 13, 2021 | 08:33 AM
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I had similar symptoms when one of my fuel injector connectors was loose. Easy to check
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