P0022 on Mazda: How to Diagnose & Fix
Intake Camshaft Position Timing - Over-Retarded (Bank 2)
1 Mazda model · 1 documented issue · 1 critical · $400-$1,200 repair
P0022 on Mazda by model: symptoms, diagnosis and fix
The exhaust-side VVT actuator (cam phaser) fails due to oil sludge and wear, causing timing codes and engine rattle. The actuator solenoid can also stick, leading to incorrect valve timing. Oil change neglect accelerates failure. Common on both MZR and early SkyActiv 2.5L engines.
Common Symptoms
- Rattling noise on cold start (chain slap)
- Check engine light with P0012 or P0022 cam timing codes
- Rough idle and stalling at stop lights
- Reduced power and poor fuel economy
How to Fix
Replace VVT actuator/cam phaser assembly and VVT solenoid. Use Mazda-spec 0W-20 full synthetic oil and replace at 5,000-mile intervals to prevent sludge. Check timing chain stretch while servicing.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Mazda genuine electric intake VVT actuator PE01-12-4X0BOEMMazda PE01-12-4X0B
Electric intake VVT actuator after the bulletin PID test confirms actuator failure Fitment/availability: The inspected direct page identifies genuine Mazda PE01-12-4X0B as the actuator and lists 2014-2017 Mazda6 2.5L applications.
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Owner tips & cautions
- TipUse full synthetic 0W-20 (Mazda spec) and change oil every 5,000 miles max - Mazda6Club.com VVT thread
- TipInspect timing chain stretch when replacing VVT - may need chain replacement at high mileage
P0022 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0022 mean on a Mazda?
P0022 stands for "Intake Camshaft Position Timing - Over-Retarded (Bank 2)." This code means the engine computer found that the intake camshaft on bank 2 is timed too far retarded — more delayed than it commanded through the variable valve timing (VVT) system. The computer adjusts cam timing using an oil-controlled actuator (a phaser) and an electric solenoid, then verifies the cam actually moved to the target position. When the intake cam on bank 2 lags behind its commanded position, this code sets, often causing rough idle, reduced power, or lower fuel economy. (Bank 2 is the cylinder bank that does not contain cylinder 1.) It usually traces back to oil flow, the VVT solenoid, or the phaser. On Mazda it is documented across 1 model: Mazda6.
What are the most common causes of P0022?
The most common causes of P0022 are: Low or dirty engine oil restricting VVT operation, Stuck or clogged camshaft (VVT) oil control solenoid, Clogged VVT oil passages or screen, Worn camshaft phaser/actuator on bank 2, Stretched or worn timing chain affecting cam timing, Electrical fault in the VVT solenoid wiring or connector, Incorrect oil viscosity or overdue oil change. The specific cause varies by vehicle.
How much does it cost to fix P0022 on a Mazda?
Published repair estimates on Mazda range from $400 to $1,200 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0022 on a different make?
View P0022 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.