P0021: Intake Camshaft Position Timing - Over-Advanced (Bank 2)
27 vehicles · 10 makes
P0021 is an OBD-II diagnostic trouble code meaning “Intake Camshaft Position Timing - Over-Advanced (Bank 2).” Same as P0011 but for Bank 2 (opposite cylinder bank on V-engines). Intake cam timing is over-advanced. This code appears across 27 vehicle models from 10 manufacturers.
Common Causes
Diagnostic Tools
To diagnose P0021, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
Vehicles Affected (27)
VANOS Solenoid/System Issues
VANOS Solenoid Wear and Failure
VANOS Solenoid O-Ring Failure
VANOS Solenoid Oil Sludge Buildup
N55 VANOS Solenoid Failure - 435i/440i F32/F33/F36
Timing Chain Guide Wear and Chain Tensioner Noise on the S62 V8
VANOS Solenoid Failure (N52, N55 Engines)
VANOS Solenoid Failure (All Engines)
S63 VANOS Solenoid Failure - E70/F85/F95 X5 M
VANOS Unit Failure (S54 Double-VANOS)
S63 V8 Chronic Oil Leaks (Valve Cover, Oil Pan, Turbo Lines) - E70/F85/F95 X5 M
VANOS Solenoid & System Failure - E85/E89 Z4 (All Engines)
VANOS High-Pressure Pump & Line Failure (CATASTROPHIC) - E60 M5
VANOS Solenoid Failure (S65 V8)
E39 M5 VANOS Solenoid/Seal Failure Causing Rattle, Power Loss, and Check Engine Lights
5.0L Coyote Engine Tick/Knock Noise at Idle
5.0L Coyote Cam Phaser Tick/Rattle
Coyote Engine Tick/Knock at Startup
3.5L Duratec Cam Phaser Rattle
6.2L V8 Cam Phaser Tick on Cold Start
Cam Phaser Rattle and Timing Chain Noise on 2.7L/3.0L EcoBoost
Timing Chain Guide Wear / Chain Noise
Timing Chain Tensioner Failure
Timing Chain Guide Wear and Chain Noise
Timing Chain / VVEL Rattle and Front Timing Cover Oil Leaks on VQ37VHR
FAQ
What does P0021 mean?
P0021 stands for "Intake Camshaft Position Timing - Over-Advanced (Bank 2)." Same as P0011 but for Bank 2 (opposite cylinder bank on V-engines). Intake cam timing is over-advanced.
What are the most common causes of P0021?
The most common causes of P0021 are: Faulty VVT solenoid Bank 2, Worn timing chain Bank 2, Low oil pressure, Contaminated oil, Failed cam phaser. The specific cause varies by vehicle.
How much does it cost to fix P0021?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by P0021?
Au7o has documented P0021 across 27 vehicle models from 10 manufacturers: BMW, Dodge, Ford, Infiniti, Jeep, Mazda, Nissan, Subaru, Toyota, Volkswagen.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.