P052D

Cold Start A Camshaft Position Timing Over-Retarded Bank 2

Variable valve timing (VVT) Generic OBD-II High

What it means

P052D means that during a cold start the bank 2 intake camshaft timing was more retarded than commanded. Variable valve timing is driven by engine oil pressure through a control solenoid, so cold, low, or dirty oil and a faulty actuator solenoid are common causes. It typically shows up as rough cold-start idle or a brief rattle that clears as the engine warms.

High

Can I keep driving? Usually drivable — the fault shows up mainly during cold starts as rough idle or a brief rattle. Address it so oil-fed cam timing works correctly and to avoid phaser wear.

Common symptoms

What you'll notice

Rough or unstable idle on cold start
Brief rattle or noise from the front of the engine when cold
Slight hesitation or reduced power until warm
Check-engine light on

Common causes

Most likely first

Low or dirty engine oil (VVT is oil-pressure driven)Likely
Faulty intake camshaft actuator (OCV) solenoid on bank 2Common
Open, shorted, or poorly connected OCV wiringCommon
Worn camshaft phaser or stretched timing chainLess often
ECM/PCM fault (rare)Less often

How to diagnose & fix

Work through it in order

Read freeze-frame data and confirm the code with a scan tool.
Check oil level and condition first — top up or change dirty oil.
Test the bank 2 oil-control-valve solenoid resistance (roughly 6.9–7.9 ohms) and its wiring.
Inspect the connector for corrosion or a poor connection.
If oil and the solenoid are good, inspect the phaser and timing chain for wear. Clear and re-test.

FAQ

Quick answers

Is it safe to drive with P052D?+

Generally yes short-term — it mainly affects cold-start idle. Fix it soon, since neglected VVT problems can lead to phaser or timing-chain wear.

Can I just clear P052D?+

It returns on the next cold start until the cause is fixed. Start with oil level and condition, then the actuator solenoid.

Related codes

Often seen with P052D

P052CCold Start A Camshaft Position Timing Over P0022A Camshaft Position - Timing Over-Retarded P0012A Camshaft Position - Timing Over-Retarded

Read & clear P052D yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

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✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX