P0027 OBD-II Trouble Code: Exhaust Valve Control Solenoid Circuit Range/Performance (Bank 1)

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P0027 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0027 code

P0027 is a diagnostic trouble code (DTC) for "Exhaust Valve Control Solenoid Circuit Range/Performance (Bank 1)". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$70.00$30.00
Toyota$70.00$30.00
BMW$70.00$30.00
SCHEDULE P0027 DIAGNOSTIC Get a fair and transparent estimate upfront

check engine light

P0027 trouble code definition

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

What the P0027 code means

P0027 is the OBD-II generic code indicating the engine control module (ECM) has determined that the variable valve lift for the exhaust valves on bank 1 of the engine takes too long to engage or does not engage.

What causes the P0027 code?

  • The ECM activates the exhaust valve solenoid without change to the different lift position.

  • The exhaust valve lift solenoid has an open or short circuit causing the valve lift to not change.

  • The wiring or connections to the exhaust valve lift solenoid is damaged causing a short or open circuit.

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

What are the symptoms of the P0027 code?

  • The engine lacks power depending on valve lift failed positions.

  • The engine may hesitate or stall on acceleration.

  • The engine will run erratic if the exhaust valves failed in the wrong lift position that is normal.

  • The Check Engine Light will come on indicating a problem with the system.

How does a mechanic diagnose the P0027 code?

  • Performs a visual check of the wire harness and connections for chafing or bad connections

  • Clears all of the engine codes to verify if the code returns

  • Utilizes a test control solenoid to diagnose the valve train lift operation

  • Checks the lift control solenoid for a short or open circuit, replaces the solenoid if it fails the test

  • Follows the manufacturer's specific pinpoint tests for further diagnosis of the wiring or ECM.

Common mistakes when diagnosing the P0027 code

Follow these simple guidelines to prevent mistakes:

  • Clear the code and retest system to verify the failure in the variable valve lift system.

  • Use the special tools that are necessary for proper testing.

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

  • Only replace parts when directed by the pinpoint and visual test procedure.

How serious is the P0027 code?

  • The engine may run erratic, stall, or hesitate.
  • The engine may run rough and have a reduced fuel mileage.
  • The engine may start very hard or not start at all if the ECM has failed.

What repairs can fix the P0027 code?

  • Clear the fault codes and perform a road test.
  • Replacing the exhaust valve lift solenoid.
  • Repairing or replacing the wiring or connection to the exhaust lift solenoid.
  • Repairing the ECM connector or replacing the ECM.

Additional comments for consideration regarding the P0027 code

The exhaust valve lift mechanism may bind from engine sludge build up or oil passages clogged. This can cause the shift mechanism to not move and the ECM will set the code.

Need help with a P0027 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.

P0027
Check Engine Light
trouble codes

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P0027 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.5/5

Number of Reviews

3,901

Rating Summary
3,566
166
43
25
101
3,566
166
43
25
101

Rigoberto

8 years of experience
517 reviews
Rigoberto
8 years of experience
He was very professional and answered all my questions. Very nice person.
2006 CHEVROLET MALIBU - CHECK ENGINE LIGHT IS ON - CHICAGO, ILLINOIS

Alex

19 years of experience
82 reviews
Alex
19 years of experience
Got right down to the point and told me what I needed to hear, great experience with Alex.
1991 NISSAN 240SX - CHECK ENGINE LIGHT IS ON - PHOENIX, ARIZONA

John

17 years of experience
310 reviews
John
17 years of experience
Very knowledgeable. Was very impressed. Will recommend to friends
2008 CHRYSLER PACIFICA - CHECK ENGINE LIGHT IS ON - ORLANDO, FLORIDA

Jay

34 years of experience
566 reviews
Jay
34 years of experience
He was awesome. He was a little late...but he called to let me know that.He did a thorough inspection of my car and gave me good advice of what i should do. I would most likely book him again.
1998 HONDA CIVIC - CHECK ENGINE LIGHT IS ON - COLTON, CALIFORNIA

More related articles

P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P0608 OBD-II Trouble Code: Control Module VSS Output "A" Malfunction
P0608 means there is an malfunction in the vehicle speed sensor A control module often due too faulty speed sensor or shorted electrical wiring.

Related questions

Q: I bought a dodge challenge from the auction It start good but I won't move fast it just go slow and when I hit the gas it doesn't

It sounds like the engine computer is in failure management mode. If the check engine light is on then you need to have the codes scanned and then have the codes received diagnosed to see what caused the computer to...

Q: Co2 sensors are detected as malfunctioning . Can I still drive with this problem until i can afford to fix. 1 week.

The codes you are getting may be directed to the O2 sensors but can be caused by a computer system or fuel system malfunction. You should get each code diagnosed to find out what is the cause of the rich...

Q: How do you get Check Engine Light reading with no OBD-II plug?

All vehicles that are newer than 1996 and sold in the United States are required to have an OBD-2 system. The scanner plug may have been removed for some reason by the previous owner or mechanic. If this is the...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com