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2009 Cadillac STS 3.6L Poor Idle Quality, Misfire, MIL Lamp on
Posted to GM Driveability on 2/18/2023 5 Replies

Vehicle initially was towed in for a no start after sitting ‘for a while’. Found the ECM fuse in the under hood fuse box was blown, along with no communication with the PCM. After the fuse was replaced the engine would crank but not start. The cranking com...

5 Replies Received (View Replies)

  Related Documents & Media  2009 Cadillac STS

 
Message Closed w/FIX

car Vehicle Data

2009 Cadillac STS

VIN 1G6DA67V69
Engine3.6 L / 6 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / DI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursAlways, Idle

Trouble Codes

P0016Crankshaft/Camshaft Timing Misalignment
P0087Fuel Rail Pressure Too Low
P0089Fuel Pressure Regulator 1 Performance
P0302Cylinder 2 Misfire Detected
P0304Cylinder 4 Misfire Detected
P0306Cylinder 6 Misfire Detected
Message Closed w/FIX

car Vehicle Data

2009 Cadillac STS

VIN 1G6DA67V69
Engine3.6 L / 6 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / DI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursAlways, Idle

Trouble Codes

P0016Crankshaft/Camshaft Timing Misalignment
P0087Fuel Rail Pressure Too Low
P0089Fuel Pressure Regulator 1 Performance
P0302Cylinder 2 Misfire Detected
P0304Cylinder 4 Misfire Detected
P0306Cylinder 6 Misfire Detected