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

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Cost of diagnosing the P0206 code

P0206 is a diagnostic trouble code (DTC) for "Injector Circuit Malfunction - Cylinder 6". 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
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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.

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P0206

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