P0207 OBD-II Trouble Code: Injector Circuit Malfunction - Cylinder 7

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Cost of diagnosing the P0207 code

P0207 is a diagnostic trouble code (DTC) for "Injector Circuit Malfunction - Cylinder 7". 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. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

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P0207 code definition

Injector Circuit Malfunction - Cylinder 7

What the P0207 code means

  • The P0207 code is a common OBD2 diagnostic trouble code (DTC) that is set when the Engine Control Module (ECM) detects out of range performance for the cylinder 7 fuel injector circuit.

  • P0207 is similar to and may be seen with P0200, P0201, P0202, P0203, P0204, P0205, P0206, and P0208 - P02012

  • Injector malfunction codes may trigger a lean condition, rich condition, and misfires.

What causes the P0207 code?

  • ECM has failed
  • Injector for cylinder 7 is bad
  • Shorted to power or open wiring harness for injector circuit
  • Electrical connection that is poor

What are the symptoms of the P0207 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

P0207 can have a variety of symptoms that may be felt before the Check Engine Light is seen on the dashboard such as:

  • Lack of power
  • Poor fuel economy
  • Misfire conditions

How does a mechanic diagnose the P0207 code?

  • Uses a scan tool to check for any codes stored in the ECM
  • Notes freeze frame data for all codes
  • Clears codes and performs a test drive under conditions from freeze frame data
  • Performs a visual inspection of all components in the injector circuit if P0207 code returns
  • Checks for voltage at the fuel injector with a multimeter
  • Installs a noid light to check the pulse width of the cylinder 7 injector
  • Uses a scan tool to check what the ECM reads for voltage at the fuel injector
  • Performs an ECM test

Common mistakes when diagnosing the P0207 code

Mistakes are usually made when steps are not followed or completed in their entirety. These steps are done so that simple things are not missed and parts are not replaced when they are not the cause of the malfunction.

How serious is the P0207 code?

P0207 can cause some issues that are a cause for concern such as the engine running poorly or the engine stalling. With these symptoms, the vehicle should not be driven because it is unsafe until repairs are performed.

What repairs can fix the P0207 code?

Additional comments for consideration regarding the P0207 code

A noid light set is especially handy in diagnosing fuel system issues. It is used to tell the technician how long the injector pulse is, and whether it is within specifications. They are installed into the wiring harness in place of the fuel injector, and light up when active.

Fuel cleaners such as SeaFoam can be used in some cases to clean varnish and contamination buildup from the fuel system. The buildup is not uncommon in vehicles as they age and get over 100k miles.

An essential tool for P0207 is an advanced diagnostic scan tool. Normal scan tools will only show the codes and allow you to clear them; they may not even provide a description of the code. Advanced scan tools show live data of voltage and resistance, and they monitor operation of the sensors and injectors. These allow difficult intermittent issues to be tracked down much easier.

Need help with a P0207 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.

trouble codes
P0207
Check Engine Light

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