Operation CHARM
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Pontiac
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1989
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J2000/Sunbird L4-121 2.0L
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Repair and Diagnosis
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Powertrain Management
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Ignition System
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Firing Order
Firing Order
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Specifications
Ignition Firing Order
With Overhead Cam (OHC)
Without Overhead Cam (OHC)
Number 1 Cylinder Location