Skip the auto shop - Our mechanics make house calls

P0206 OBD-II Trouble Code: Injector Circuit Malfunction - Cylinder 6

Check Engine Light

P0206 code definition

Injector Circuit Malfunction - Cylinder 6

What the P0206 code means

When a P0206 code is seen, the Engine Control Module (ECM) has detected either voltage or resistance that is out of specification in the fuel injector circuit for cylinder 6.

What causes the P0206 code?

  • Faulty ECM
  • Cylinder 6 injector that has failed or is failing
  • Wiring harness has an open or shorted wire
  • Faulty electrical connection

What are the symptoms of the P0206 code?

  • Check Engine Light is triggered by the ECM and observed on the dashboard

  • Failsafe mode (precaution to prevent damage to the vehicle) is enacted by the ECM

  • Failsafe mode remains in effect until the circuit has performance that is within range or the fault is repaired

  • Engine runs poorly or dies

  • Car may be hard to start or does not restart once it has died

  • Misfires, lean or rich conditions

  • Less than normal fuel mileage

How does a mechanic diagnose the P0206 code?

  • Hooks up scan tool and checks for all codes

  • Looks at freeze frame data for every code found

  • Clears codes and performs a test drive under similar conditions to the freeze frame dataset which set the original code

  • Visually inspects all of the components in the cylinder 6 injector circuit

  • Checks for voltage at the fuel injector with a multimeter set to voltage

  • Uses the scan tool to look at injector 6 voltage and resistance and compares it to other injectors

  • Installs a noid light between the fuel injector cylinder 6 and the wiring harness to test pulse width

  • Performs an ECM test to manufacturer specifics

Common mistakes when diagnosing the P0206 code

The fuel injector is the most common cause of P0206, especially on higher mileage vehicles. The fuel injector must be fully tested and all steps performed, otherwise incorrect repairs may be made. This leads to unnecessary repairs and loss of time and money. All steps must be followed and none skipped to avoid common mistakes made.

How serious is the P0206 code?

P0206 can cause some concern depending on the symptoms displayed. Care should be taken with driving a car with P0206 and if the engine runs poorly, or has trouble staying running, it should not be driven. Repairs should be made ASAP to get the vehicle back onto the road and operating as designed.

What repairs can fix the P0206 code?

Additional comments for consideration regarding the P0206 code

Vehicles with high milage get a buildup of contamination from gasoline over time. As they age, it is common to see fuel system issues such as P0206. Some fuel system cleaners, such as Seafoam, can help clean out the fuel system, in some cases.

Technicians will use a number of specialty tools when diagnosing P0206, such as a noid light set. These are a quick way to check how long an injector is spraying fuel for (also called “pulse width”). Noid lights will be used as part of the process to test the fuel injector itself.

Another tool that will be used is a professional grade scan tool. Professional level scan tools not only list all codes present, they can also show live data on a datastream, which can be used to check for sensors and injectors operating properly.

Need help with a P0206 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

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,...
Insurance Requirements for Car Registration in Kentucky
The Kentucky Transportation Cabinet requires that all drivers in Kentucky carry liability automotive insurance, or “financial responsibility” in order to operate a vehicle legally and maintain vehicle...
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....


Related questions

Q: Problem issue at startup sometimes.

Hi there. Best thing to do first is put a scanner on the computer and scan for any codes that are pending or stored in the computer. This will give you a starting place to check of why your engine...

Q: My Mitsubishi Lancer 2005 has a limp mode issue - the car does not erase trouble codes permanently (even by debugging or terminal disconnection)

I see the note where you have previously replaced several components on the transmission already. Do you recall the brand and warranty of these components? If the parts you replaced are still under warranty, you may be able to get...

Q: Check Engine light still on after speedometer fix.

Hi there. The most common cause of the speedometer quitting and the Check Engine Light coming on is the vehicle speed sensor. This sensor is located on the transmission and sends a speed signal to the computer to allow the...