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1994
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DeVille Concours
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Engine Controls - Tests W/Codes - 4.9L
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Pcm Code Charts
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Code P023, Ignition Control Circuit Problem
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Failure Conditions (Crank)
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Failure Conditions (Crank)
No ignition pulses detected in circuit No. 423.