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

Could this be a Fuel injector problem?

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Old Jun 18, 2011 | 01:32 PM
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Default Could this be a Fuel injector problem?

Always starts fine.
After it warms up it still runs fine, but at idle tends to roll or surg, once in a while it will stall, especially if air is on.
10% of time after I try to restart a warm/hot engine it will not start, just turns over almost like its flooded, but no smell of gas.
The last few times out after warming up, engine off for 20 minutes it seemed to miss and continue to miss.
I use fuel stabillizer at all times.
My 1991 has 22,000 miles and in the last 1000 miles have:
Changed plugs, wires, dist. Cap, pcv, air filter, fuel filter
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Old Jun 18, 2011 | 01:38 PM
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Could be, hook up a fuel pressure gauge at the rail. Pressure should run 45psi and then turn the engine off. Watch what the pressure does, time how long it takes for it to drop.

if it immediately drops to zero its telltale sign the injectors are leaking and flooding the cylinders.
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