Skip the auto shop - Our mechanics make house calls

P0026 OBD-II Trouble Code: Intake Valve Control Solenoid Circuit Range/Performance (Bank 1)

check engine light logo

P0026 trouble code definition

Intake Valve Control Solenoid Circuit Range/Performance (Bank 1)

What the P0026 code means

P0026 is the OBD-II generic code indicating the engine control module (ECM) has determined that the variable valve lift solenoid for the intake valves for bank 1 takes too long to engage or does not engage.

What causes the P0026 code?

  • The ECM activates the intake valve solenoid for bank 1, but the valves do not change to the high lift position.

  • The intake valve solenoid has an open or short circuit.

  • The wiring or connections to the intake valve solenoid is shorted or open.

  • The ECM is defective or the connection to the ECM is loosing contact.

What are the symptoms of the P0026 code?

  • The engine can experience a lack of power if the valve lift fails in the low position.

  • The engine may run rough or stall if one of the two intake camshafts are stuck in a high valve lift position.

  • The engine will run very erratically depending on the intake valves failed position.

  • The Check Engine Light will be illuminated indicating a problem.

How does a mechanic diagnose the P0026 code?

  • Visually checks the electrical connections and wire harness to the bank 1 intake valve solenoid.

  • Clears codes and verifies if the code returns before doing any further testing

  • Installs the test intake valve control solenoid for proper diagnosis and follows the pinpoint test to check to see if the valves change during the testing

  • Commands the test solenoid off and the intake valves should go to high lift

  • Commands the test solenoid on and the intake valves should go to low lift

  • Follows the manufacturer's specific pinpoint tests for further diagnosis

Common mistakes when diagnosing the P0026 code

Follow these simple guidelines to prevent mistakes:

  • Verify the failure by clearing the code and seeing if the problem is still present.

  • Do not attempt any diagnosis without special tools like a test solenoid.

  • Follow any pinpoint test done, step by step, to isolate the failure on the system.

  • Do not replace any parts unless directed by the pinpoint or visual test.

How serious is the P0026 code?

  • If one of the camshafts is stuck in high lift and the other in a low lift the engine may run rough and may stall when coming to a stop.

  • The engine can hesitate and have a lack of power during acceleration.

  • The engine may start very hard or run too lean.

What repairs can fix the P0026 code?

  • Clearing the fault codes and perform a road test to try and verify failure

  • Testing the solenoid installed to see if the valves work okay and replacing the intake lift solenoid

  • Repairing or replacing the wiring or connection to the intake lift solenoid

  • Repairing the ECM connector or replacing the ECM

Additional comments for consideration regarding the P0026 code

The intake valve lift mechanism is actuated by the lift solenoid, which opens and closes oil pressure to the the lift mechanism to shift it from the low lift lobe to the high lift lobe on the camshaft.

Need help with a P0026 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
How to Get a Louisiana Driver's Permit
s licensing program. The first step in this program is to obtain...


Related questions

Q: I keep getting Check Engine Light, Code: P0014 , sometime it randomly turns off the CEL but eventually comes back.

Hello. The code is for the exhaust camshaft not in the position that the ECM has commanded it to be in. You could have problems with the cam sensor, camshaft control system, or wiring. Make sure that you have been...

Q: Gearbox fault warning came on - 2012 Range Rover

Hey there, the battery's low voltage may have been the code they received. You may have to have the body control and transmission module tested for a bad connection and pinpoint tested to see if the gear box fault is...

Q: Getting Engine light code P0430

The definition for the code P0430 is a problem with the catalyst or the sensors that keep track of its operation. An experienced technician will, such as one from YourMechanic, be able to identify the problem component. In many cases,...