P0662

Intake Manifold Tuning Valve Control Circuit High Bank 1

Q: Is it safe to drive with P0662?

Yes — the engine runs and the car is drivable. You may just notice it feels flat in part of the rev range until the tuning valve is repaired.

Q: Can I just clear P0662?

It returns while the circuit reads high. Repairing the wiring short or replacing the tuning valve is what actually clears it.

Intake manifold tuning Generic OBD-II Medium

What it means

P0662 means the control circuit for the bank-1 intake manifold tuning valve is reading high voltage, usually from a wiring short to voltage or a failed solenoid. This valve changes the intake runner length to optimize airflow across the rev range, so a fault mainly shows up as weaker power in part of the range — not a no-start. The car remains drivable while it's repaired.

Medium

Can I keep driving? Drivable — the engine runs, but you may notice weaker power in part of the rev range; fix it to restore full performance and economy.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Appears alongside · share of P0662 scans

P0562in 85.9% of scans

P0661in 85.9% of scans

P0500in 82.8% of scans

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on
Reduced power in the low or high rpm range
Slight drop in throttle response or fuel economy
Occasional rough idle

Common causes

Most likely first

Faulty intake manifold tuning valve/solenoid on bank 1Likely
Wiring shorted to voltage in the control circuit (drives the reading high)Common
Corroded or loose connector at the valveCommon
Poor ground affecting the control circuitLess often
Faulty engine control module (ECM), rareLess often

How to diagnose & fix

Work through it in order

Inspect the intake manifold tuning valve connector and wiring for a short to voltage or corrosion.
Measure the solenoid's resistance and compare to spec.
Check the control circuit and ground for damage.
Replace the tuning valve/solenoid if it tests faulty.
Clear the code and re-test for return.

FAQ

Quick answers

Is it safe to drive with P0662?+

Yes — the engine runs and the car is drivable. You may just notice it feels flat in part of the rev range until the tuning valve is repaired.

Can I just clear P0662?+

It returns while the circuit reads high. Repairing the wiring short or replacing the tuning valve is what actually clears it.

Read & clear P0662 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX