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Re: 4.3l Vortec engine propane fueled
Posted to Technical Discussion Forum on 3/13/2017 2 Replies



The secondary spark kv drift is normal, but if the same cylinder repeats the same high spark kv, then you have to ck why it is high.

If you scope the ignition primary voltage, you will find that the spark voltage is very stable and does not drift up and d... Login to read more.

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car Vehicle Data

2003 Pontiac Grand Prix GT 3.8L

Engine3.8 L
Trans4-speed Automatic (Electronic)

car Vehicle Data

2003 Pontiac Grand Prix GT 3.8L

Engine3.8 L
Trans4-speed Automatic (Electronic)