OBD-II trouble code
P0080: Exhaust Valve Control Solenoid Circuit High (Bank 1)
Application matters: Bank 1 contains cylinder 1; bank 2 is the other assigned bank. Locate the actual bank 1 exhaust control component using the engine’s service diagram. Bank number does not specify front/rear access, left/right side, hardware count or interchangeable parts.
P0080 reports a circuit-high fault for the bank 1 exhaust-valve-control solenoid. Match the full manufacturer DTC and actual circuit before choosing a component or timing repair.
Quick facts
- System
- Powertrain
- Category
- Variable Valve Timing
- Severity
- Medium severity
- Driving guidance
- Depends on symptoms and vehicle guidance
- Repair cost range
- $469 – $594 (VVT control solenoid replacement, parts and labor; conditional job example)
- DIY difficulty
- Shop recommended
A code alone cannot establish whether driving is safe. Stop safely for a red brake or oil-pressure warning, overheating, severe misfire, stalling, or impaired braking or steering, and follow the owner's manual. Restraints faults can reduce crash protection even when the vehicle runs normally.
Part of a family with 12 codes
P0080 is one of 12 codes covering intake and exhaust valve solenoid circuit faults. The identifier must be matched to the exact vehicle. Related codes can share a diagnostic approach, but their circuit, failure condition, and required tests can differ.
Read the full guide for this family →Browse every code in P0001–P00C6, or start from the full code library.
What does P0080 mean?
P0080 identifies a circuit-high fault involving the bank 1 exhaust-valve-control solenoid. High describes the classified electrical result. It does not by itself prove an open winding, a lost feed or a short to power. The actual supply, driver and feedback arrangement determines the permitted checks.
The generic designation does not locate the component, specify its hydraulic or mechanical function, or establish that another engine’s camshaft-actuator procedure applies. Identify the exact engine, full DTC and fitted control hardware before ordering a part. Bank 1 is identified by cylinder numbering, not an assumed front or rear position.
Mitsubishi’s 2022 DG P0080 description identifies an improper-voltage monitor for the bank 1 exhaust-valve-control solenoid. Its documented fallback affects several engine controls. It does not establish that every vehicle simply parks one exhaust phaser, runs normally or uses the same test conditions.
An electrical control fault and a valve-timing/response fault require distinct evidence. A click does not prove the full circuit and mechanism are correct; a lack of cam movement does not independently prove an oil-flow problem. Other-bank resistance, a bank-to-bank swap or an unplug response is not a substitute for the actual specification and circuit tests.
Follow the vehicle’s warnings and arrange diagnosis. The code does not guarantee a parked position, unchanged power or absence of mechanical risk. Do not perform loaded driving, live hot-harness manipulation, forced movement or direct battery/jumper tests to find the fault.
Possible causes
- A loose, contaminated or damaged connection in the identified bank 1 exhaust-valve-control solenoid path
- An open, short or excessive resistance established by the actual supply/control/return checks
- An internal solenoid/control-component fault demonstrated by the permitted specifications and tests
- Incorrect parts, routing or wiring disturbed during prior work
- A shared supply, controller or configuration fault established after required checks; companion codes alone do not prove a shared cause
Symptoms
- Check engine light or stored P0080
- Possible reduced power, idle or running complaint, depending on the actual control strategy
- Relevant circuit, timing or correlation companion codes
- No obvious symptom at inspection; this does not prove normal control or a completed repair
Diagnostic steps
Save the full scan report, code status, and available freeze-frame data before clearing anything. Confirm the reporting module, any failure-type suffix, and the procedure for the exact vehicle. The steps below are an overview; use manufacturer specifications and safety procedures for testing.
- 1.Save the full P0080, reporting module, suffix, status, event data and all companion codes. Note the actual symptoms and recent engine or wiring work.
- 2.Identify the exact engine, cylinder/bank diagram and bank 1 exhaust control component. Match the connector and part by the actual application; do not infer a location, number of solenoids or interchangeability.
- 3.With the engine off and cool, inspect only safely accessible identified connections and routing for visible disconnection, contamination, heat/contact damage or disturbed prior repairs. Leave disassembly or under-vehicle inspection to a properly equipped technician.
- 4.Have a qualified technician follow the actual supply, driver/control and permitted component checks. Keep the required electrical state and isolation methods; do not bridge terminals, apply battery power or interpret an unplug result as a conclusive diagnosis.
- 5.If comparison or actuation is permitted, use the actual specification and identified compatible hardware. Another bank is not automatically a known-good reference, and equal resistance or a click does not prove correct operation.
- 6.Investigate oil level/condition, mechanical response or related timing faults only as the actual procedure requires. Do not clean or remove a valve, swap banks or replace a phaser solely because this circuit code is stored.
- 7.Repair the demonstrated cause, including any demonstrated source of physical damage, then complete required setup and safe circuit/monitor verification. Clearing the code or a brief normal idle is not sufficient.
Repair cost
$469 – $594 (VVT control solenoid replacement, parts and labor; conditional job example)
USD planning figures, not a vehicle-specific quote. Confirm the diagnosed job and whether the estimate includes diagnosis, parts, labor, programming, calibration, and taxes.
RepairPal national estimate, updated September 3, 2026 and checked November 6. Use only if diagnosis confirms replacement of this type of variable valve timing solenoid. Excludes taxes, fees, location differences and related work. It is not a quote for a particular bank, a different valve-control device, wiring, a cam phaser, timing repair or programming.
Estimate your repair
Run the numbers for your vehicle
Open the Repair Cost Estimator with check engine light diagnosis preselected. Adjust labor rate and vehicle category to fit your situation.
Related repairs
These links are planning examples; the code does not confirm that any listed part has failed.
DIY vs shop
A qualified shop is recommended because this can involve engine timing components, where locking tools and exact sequencing are the difference between a repaired engine and valves meeting pistons. Ask the technician what testing confirmed the repair.