ON BOARD DIAGNOSIS

1994 Pontiac Grand Am

Tiny

trcrumby

October, 30, 2013 AT 11:17 AM

I have a obd1&2 reader but when I plug into my computer plug it shows not reading.
My engine died like someone shut off fuel.
can get it cranked but rough and smokes.
white smoke. No water shows in oil.
water resovoir is not low.
am at a loss for what to do next.

FOUND 1835 RELATED QUESTIONS

1 Answer

Tiny

Wrenchtech

October, 30, 2013 AT 12:52 PM

You can't read codes on that car with either of those tools. You need a professional scan tool because that is a hybrid of both systems.

You are getting coolant into the combustion chamber somehow, most likely a blown head gasket.

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