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GM Optispark Question
Posted to Technical Discussion Forum on 4/6/2010 1 Reply

Since my DSO decided to go on vacation I cannot scope the Hi & Low res signals to the PCM. This car stalls when hot and the tach goes crazy at the same time. It's setting 16 & 32 codes for res pulse failures but it will also set 41 & 42 codes for Ignition cont... Login to read more.

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car Vehicle Data

1994 Pontiac Firebird Trans Am 5.7L

R2242402
Engine5.7 L
Trans4-speed Automatic (Electronic)

car Vehicle Data

1994 Pontiac Firebird Trans Am 5.7L

R2242402
Engine5.7 L
Trans4-speed Automatic (Electronic)