obd2.help

P0017

Crankshaft and Camshaft Timing Correlation Problem

The engine computer sees that the crankshaft and the Bank 1 exhaust camshaft are out of sync. This usually happens because of a timing problem, oil flow problem, or a faulty cam timing control part.

Severity4/5 High
Can I drive?⚠ With caution

Drive only if necessary and avoid hard acceleration or long trips. Continued driving can cause poor performance, stalling, or internal engine damage if the timing system has slipped.

DIY
$20–$400
Shop
$150–$2,500+
Difficulty
advanced

What It Means

P0017 sets when the PCM/ECM detects that the crankshaft position signal and the camshaft position signal for Bank 1 Sensor B are not in the expected relationship. On most engines, Sensor B refers to the exhaust camshaft on Bank 1. The fault can be caused by mechanical timing errors, variable valve timing system problems, oil pressure issues, or sensor/circuit faults.

Symptoms

Common Causes

1. Stretched timing chain or timing belt that has jumped timinghigh
2. Low oil level, dirty oil, or incorrect oil viscosity affecting variable valve timing operationhigh
3. Faulty camshaft oil control valve / VVT solenoid on Bank 1high
4. Cam phaser or VVT actuator stuck or wornmedium
5. Crankshaft position sensor or camshaft position sensor giving an inaccurate signalmedium
6. Wiring damage, poor connector contact, or oil contamination in the sensor or solenoid circuitsmedium
7. Low engine oil pressure from internal wear or oil pump problemsmedium
8. Incorrectly installed timing components after recent engine repairlow
9. PCM/ECM software issue or failed control modulelow

Related Codes

FAQ

What does Bank 1 Sensor B mean?

Bank 1 is the side of the engine with cylinder 1. Sensor B usually refers to the exhaust camshaft position sensor, but the exact definition can vary by manufacturer.

Can low oil cause P0017?

Yes. Low oil, dirty oil, or the wrong oil viscosity can affect cam timing control and trigger this code.

Will an oil change fix P0017?

It can if the problem is caused by dirty oil, low oil, or a sticking VVT solenoid. It will not fix stretched timing chains, jumped timing, or failed sensors.

Is P0017 the same as a bad camshaft sensor?

No. A bad camshaft sensor can cause P0017, but this code is often caused by timing chain wear, VVT faults, or oil pressure problems.

How serious is P0017?

It is a serious code because the engine timing may be off. If ignored, the engine may run poorly, stall, or suffer internal damage on some engines.