P1090 Code - VVEL Actuator Motor Bank 1
Quick Answer
The P1090 diagnostic trouble code (DTC) relates to the Variable Valve Event and Lift (VVEL) Actuator Motor on Bank 1 of the engine. Common causes include Faulty VVEL actuator motor, Wiring harness issues, Electronic control unit (ECU) malfunction. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1090 indicates VVEL Actuator Motor Bank 1.
- Common causes
- Common causes include Faulty VVEL actuator motor, Wiring harness issues, Electronic control unit (ECU) malfunction.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P1090 Description
The P1090 diagnostic trouble code (DTC) relates to the Variable Valve Event and Lift (VVEL) Actuator Motor on Bank 1 of the engine. The VVEL system controls the intake valve lift and timing to optimize engine performance and fuel efficiency. When this code is triggered, it indicates a malfunction or issue with the actuator motor on Bank 1, potentially leading to improper valve operation and affecting engine performance.
Common Causes of P1090
- Faulty VVEL actuator motor
- Wiring harness issues
- Electronic control unit (ECU) malfunction
- Mechanical failure in the VVEL system
- Poor maintenance or lack of regular servicing
Symptoms of P1090
- Reduced engine power
- Poor fuel efficiency
- Rough idle or stalling
- Engine misfires
- Illuminated check engine light
How to Fix P1090
- Perform a diagnostic scan to confirm the P1090 code and identify the exact issue with the VVEL actuator motor on Bank 1.
- Inspect the wiring harness and connections for any damage or corrosion and repair or replace as needed.
- Test the VVEL actuator motor for proper function and replace if it is found to be faulty.
- Reset the ECU and clear the DTC to see if the issue persists.
- Conduct a road test to ensure the VVEL system is operating correctly and recheck for any stored codes.
Cost to Fix P1090
The cost of repairing a P1090 code can vary depending on the extent of the issue and the specific components that need to be replaced. On average, the repair costs for a VVEL actuator motor replacement can range from $200 to $600, including parts and labor. However, it's essential to consider that diagnostic time, labor rates, and part prices can differ based on the location and type of repair facility. It's recommended to obtain quotes from different shops to get a more accurate estimate for the repair.
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Code P1090 Information for Specific Makes
- P1090 BMW — Pre-Catalyst Fuel Trim Too Lean Bank 1
- P1090 Infiniti — VVEL Actuator Motor Bank 1
- P1090 MINI — Pre-Catalyst Fuel Trim Too Lean Bank 1
- P1090 Nissan — VVEL Actuator Motor Bank 1
- P1090 Subaru — Tumble Generated Valve System 1 Valve Open
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