P0020 OBD-II Trouble Code: Camshaft Position (A) Actuator Circuit (Bank 2)

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

SCHEDULE P0020 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0020 code

P0020 is a diagnostic trouble code (DTC) for "Camshaft Position (A) Actuator Circuit (Bank 2)". 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 P0020 DIAGNOSTIC Get a fair and transparent estimate upfront

Check Engine Light

P0020 code definition

Camshaft Position (A) Actuator Circuit (Bank 2)

What the P0020 code means

P0020 is the OBD-II generic code indicating that the engine control module (ECM) has determined that the bank 2 intake camshaft Oil Control Valve (OCV) has an open or short circuit. This happens during one drive cycle.

What causes the P0020 code?

  • The ECM has commanded the OCV to less than 80% duty cycle and output is 100%.
  • The ECM has commanded the OCV up to 70% and output is less than 3%.
  • The OCV or wiring to the bank 1 exhaust camshaft may be shorted out.
  • The OCV may have an open circuit or the wiring is open.

What are the symptoms of the P0020 code?

  • The Check Engine Light will come on.
  • The engine may have a hard start condition if OCV is shorted.
  • The engine will have a reduction in fuel mileage if the OCV is shorted or open.
  • The engine may run rough, hesitate or stall depending on if it has shorted or if it has an open OCV circuit.

Note: The symptoms will change depending on the camshaft position when the Variable Valve Timing (VVT) system stopped working.

How does a mechanic diagnose the P0020 code?

  • Visually checks the electrical connectors, wiring and OCV for any problems
  • Checks the computer codes then documents the freeze frame data for the code
  • The vehicle is tested to see if the codes come back
  • Checks OCV for correct resistance of approximately 6.9 to 7.9 ohms
  • Traces and repairs any shorts or open circuits in the wiring
  • Checks the system following manufacturer's pinpoint tests

Note: Follow the manufacturer's recommended pinpoint test to narrow down the problem if above checks do not narrow the problem down.

Common mistakes when diagnosing the P0020 code

Follow these simple guidelines to help with diagnosis to prevent mistakes:

  • Do a visual inspection for common problems like checking to see if electrical connectors are connected.

  • Check engine oil for the proper viscosity and that it is not sludged up.

  • Verify that failure codes are present before attempting repairs.

  • Always follow the manufacturer's procedures to prevent replacing good components or misdiagnosing the trouble code.

How serious is the P0020 code?

  • The engine may hesitate on acceleration.
  • The engine fuel consumption may get worse.
  • The engine may get carbon buildup on the valves and piston rings if repairs are not done as soon as possible.

What repairs can fix the P0020 code?

  • Clearing the fault codes and testing the system to verify the code
  • Repairing or replacing the wiring to the intake camshaft oil control valve for bank 2
  • Replacing the camshaft oil control valve for bank 2 intake camshaft
  • Replacing the ECM if directed from pinpoint tests

Additional comments for consideration regarding the P0020 code

The code can be caused by the OCV having an internal short circuit or an open circuit. The code may be accompanied with code P0021 or P0022.

Need help with a P0020 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.

Check Engine Light
trouble codes
P0020

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

SCHEDULE P0020 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

3,936

Rating Summary
3,597
169
44
25
101
3,597
169
44
25
101

Peter

33 years of experience
346 reviews
Peter
33 years of experience
1998 AUDI A4 QUATTRO - CHECK ENGINE LIGHT IS ON - CHULA VISTA, CALIFORNIA

Edmar

19 years of experience
45 reviews
Edmar
19 years of experience
Showed up on time, easy to talk to, knows his cars. I would use him again.
2002 SUBARU OUTBACK - CHECK ENGINE LIGHT IS ON - LITTLE ELM, TEXAS

Theodore

13 years of experience
814 reviews
Theodore
13 years of experience
Theodore was very helpful and really took time to help troubleshoot my problems.
2008 DODGE GRAND CARAVAN - CHECK ENGINE LIGHT IS ON - EVERETT, WASHINGTON

Chris

13 years of experience
397 reviews
Chris
13 years of experience
Chris was very professional and courteous during the appointment. I look forward to working with him again.
1995 TOYOTA TERCEL - CHECK ENGINE LIGHT IS ON - SAN FRANCISCO, CALIFORNIA

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...
How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...

Related questions

Q: Where is the circuit one camshaft position sensor located?

Hello. The camshaft position sensor is located on the passenger side of the engine bay, on the cylinder head near the coolant reservoir tank. The reservoir tank needs to be removed in order to access it. If you need help...

Q: After installation of a new throttle body does everything reset to normal function on the car?

Hi there. After replacing the throttle body to your engine, if the engine light was on and has a pending code, the code will go away. If the code was a hard permanent code, then the ECM (computer) would need...

Q: Check Engine Light is on - 2005 Dodge Stratus

You can keep replacing parts but until you get the codes in the computer diagnosed properly the Check Engine Light will keep coming on. The O2 sensors may give indications that they're not working when they are only indicating 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