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Pontiac
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1987
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Grand AM L4-121 2.0L
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Repair and Diagnosis
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Powertrain Management
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PROM - Programmable Read Only Memory
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Technical Service Bulletins
PROM - Programmable Read Only Memory: Technical Service Bulletins
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Customer Interest
Engine - Spark Knock or Detonation Noise
Turbocharger - Erratic Operation/Overboost Operation
All Technical Service Bulletins
Engine - THIS BULLETIN HAS BEEN CANCELED
Engine Controls - ECM May Contain Wrong PROM
ECM/PCM - Circuit Board Damage Prevention
Engine - Spark Knock or Detonation Noise
Turbocharger - Erratic Operation/Overboost Operation