P0009 Buick Engine Positions System Performance Bank 2
Possible causes
– Engine mechanical problems
– Incorrect timing chain
– Stretched timing chain
– Failed camshaft actuator or actuator solenoid
– Incorrect timing chain
– Stretched timing chain
– Failed camshaft actuator or actuator solenoid
Trouble Code Description
What about the obd code?
The ECM detects that both camshafts on either bank of the engine are mis-aligned with the crankshaft for more than 4 seconds or a cumulative of 50 seconds.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0009 Buick OBD Code Description
The Engine Control Module (ECM) monitors the position of both camshafts and the crankshaft. The ECM performs a test for misalignment between both camshafts on one bank of the engine and the crankshaft. During the test the ECM learns the position of the camshafts and the crankshaft. While the engine is idling, the ECM compares the position of both the camshafts and the crankshaft with the learned value. The ECM will set the P0008 Buick code if both learned values for one bank of the engine are exceeding a calibrated threshold in the same direction.
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