You would have to look at the FSM find the schematic for it. I have never seen that light come on, even when I had white-hot exhaust from running on the dyno at 9,000 rpm with the factory ignition. I know the light exists, but I don't know how the sensor is wired.
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1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers)
1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)
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