Worn or stretched timing chain or timing belt on bank 2; Faulty bank 2 camshaft position sensor or its wiring connector; Failed crankshaft position sensor or damaged reluctor wheel; Oil sludge or debris obstructing the camshaft phaser or sensor signal; Jumped timing tooth due to a failed tensioner or guide; Electrical fault in the camshaft or crankshaft sensor circuit, such as a short or open wire

DTC codes / P00xx · Fuel and air metering and auxiliary emission controls / P0009

P0009Engine Position System Performance (Bank 2)

Q: What does code P0009 mean?

Engine Position System Performance (Bank 2). P0009 means the powertrain control module (PCM) has detected a performance problem with the engine position system on bank 2, which is the camshaft and crankshaft signal correlation for that cylinder bank. The computer compares the expected camshaft position against the crankshaft position and flags the code when the two signals do not stay in the correct mechanical relationship.

P0009 means the powertrain control module (PCM) has detected a performance problem with the engine position system on bank 2, which is the camshaft and crankshaft signal correlation for that cylinder bank. The computer compares the expected camshaft position against the crankshaft position and flags the code when the two signals do not stay in the correct mechanical relationship.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaFuel and air metering and auxiliary emission controls

Symptoms you may notice

Illuminated check engine light, often with no other noticeable symptoms
Rough idle or misfire that feels like a shaking engine
Extended cranking before the engine starts or an intermittent no-start
Reduced engine power or limp mode under acceleration
Poor fuel economy or increased emissions
Occasional stalling when coming to a stop

Common causes, most likely first

Worn or stretched timing chain or timing belt on bank 2
Faulty bank 2 camshaft position sensor or its wiring connector
Failed crankshaft position sensor or damaged reluctor wheel
Oil sludge or debris obstructing the camshaft phaser or sensor signal
Jumped timing tooth due to a failed tensioner or guide
Electrical fault in the camshaft or crankshaft sensor circuit, such as a short or open wire

How to diagnose and fix it

Connect a scan tool and record freeze-frame data plus any related codes before clearing anything
Inspect the bank 2 camshaft and crankshaft sensor connectors and wiring for damage or corrosion
Check engine oil level and condition, then verify oil pressure if sludge is suspected
Use a lab scope to compare camshaft and crankshaft signals for correct timing and amplitude
Perform a mechanical timing verification by aligning the timing marks or checking chain stretch
Replace the faulty sensor or repair the circuit, then clear codes and road-test
If timing components are worn, replace the timing chain, belt, tensioner and guides as a set

What a P0009 often really means

A stretched timing chain on bank 2 is a far more common cause than a failed camshaft sensor, so replace sensors only after mechanical timing is verified.
The code can set intermittently from oil sludge blocking a camshaft phaser, especially on engines with long oil change intervals.
A weak battery or poor ground can corrupt the cam and crank signals enough to set P0009 without any hard part failure.
Do not assume bank 2 is the passenger side; bank numbering follows the cylinder that contains cylinder number one, which varies by engine layout.
After a timing component repair, the camshaft correlation learn procedure must be completed or the code will return immediately.

Can I keep driving with P0009?

You can usually drive short distances to a repair shop, but avoid hard acceleration and sustained high speeds because a jumped timing chain can cause valve damage. If the engine runs rough, stalls, or loses power, stop driving and have it towed.

Tools that help

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Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.