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Pontiac
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1990
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Grand AM L4-138 2.3L VIN D FI
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Repair and Diagnosis
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Specifications
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Electrical Specifications
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Ignition Coil
Ignition Coil
USING A 20K OHMS SCALE DVM:
^
Connect DVM between secondary "IDI" coil terminals, and then from one coil terminal to cover plate.
^
Resistance should be less than
10K ohms
between terminals and infinite (open circuit) to cover.