Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that there is a problem with the part of the car that controls how the exhaust valves open and close on one side of the engine. It's like a switch that isn't working right.
The P0086 code indicates that the exhaust valve control solenoid circuit on bank 2 is experiencing a higher than expected voltage.
The Exhaust Valve Control Solenoid is responsible for regulating the timing of the exhaust valves in the engine. Bank 2 refers to the side of the engine that does not include cylinder 1. A 'circuit high' condition means that the voltage in the control circuit is higher than the expected range, which can be due to a short circuit or a faulty solenoid.
• Check Engine Light is on
• Poor engine performance
• Increased emissions
• Faulty exhaust valve control solenoid
• Wiring issues such as a short to voltage
• Faulty Engine Control Module (ECM)
Solenoid: An electromechanical device that converts electrical energy into mechanical movement.
Bank 2: The side of the engine that does not include cylinder 1.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the exhaust valve control solenoid for proper operation.
• Replace the exhaust valve control solenoid.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Socket set
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance checks
• Timely replacement of faulty components
• Avoiding harsh driving conditions
Engine Performance
• Have the vehicle inspected by a professional.
• Avoid driving with the Check Engine Light on for extended periods.
• Regularly check and maintain engine components.
Check with your vehicle manufacturer for warranty coverage on engine components.
This code has been reported in various vehicle models with V6 and V8 engines, often related to solenoid failures.
Moderate – It should be addressed soon to prevent further engine issues.
Driving with a malfunctioning exhaust valve control can lead to increased emissions and potential engine damage.
• Engine at operating temperature
• Vehicle stationary
The exhaust valve control solenoid is typically located on the engine's cylinder head, on bank 2.
Q: Can I drive with a P0086 code?
A: It's not recommended to drive for long periods with this code, as it may lead to engine performance issues.
Q: How do I know if the solenoid is faulty?
A: A multimeter can be used to test the solenoid's resistance and ensure it's within specifications.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.