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Idle change when using a noid light

Old Oct 6, 2018 | 01:30 PM
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David Wade's Avatar
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Joined: Apr 2013
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From: Craig, Colorado
Engine: 5.7L TPI
Transmission: T-5
Idle change when using a noid light

1987 Camaro 350 TPI. I think I have a couple misfiring cylinders. When I unplug the offending injectors, the idle does not change. My question is; since the idle changes when plugging in a noid light does this indicate anything specific? The idle goes up a bit.
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