Error Code P0268: What It Means & What To Do?

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This trouble code is generic, which would mean that it can apply to all the vehicles which are equipped with the OBD-II or the vehicles which are made since 1996 up to the present. The specifications on the definition, the troubleshooting steps as well as repairs can always vary from one vehicle make to another.

P0268 fault code can be defined as Cylinder 3 Injector Circuit High.

The fault code P0268 is an OBD diagnostic code which would be stored in when the engine control module has detected the cylinder number 3 injector circuit has a high resistance short circuit to power or short to ground.

What causes this problem with the Cylinder 3 Injector Circuit High?

• The number three-cylinder injector circuit might have a short somewhere in the circuit from the engine control module to the injector. This would include the wiring and connections
• The number three injector can be shorted electrically internally causing the circuit high current condition
• The fuel injector pins are bent or broken in the injector or harness connection which can cause a short to power or ground
• The injector wiring might be shorted to power or ground
• The injector control module or engine control module might have a shorted internal circuit

1. Fuel Injector - Defective car Fuel Injector can be a major reason why P0268 code depicts. So, make sure to replace it online so that you don’t have to face any further issues.
2. Fuel System - Everything is okay with the Engine Wiring Connector and still OBD code P0268 triggering? Then there must be some defects in Fuel System. Replace them as soon as possible.
3. Engine Wiring Connector - If everything is alright with PCM, then there is surely some defect in Engine Wiring Connector. Get it replaced before the situation gets worse.
4. Powertrain Control Module - P0268 code can display due to some issues in the Powertrain Control Module. So, it is very important to replace the Powertrain Control Module with us at equitable prices.
5. Engine Control Module - Do you remember when was the last time you got your car Engine Control Module checked up? A faulty Engine Control Module can cause a lot of issues like displaying P0268 code.

You might be thinking that how would you diagnose these problems? We at Parts Avatar Canada would help you diagnose the major symptoms easily.

Common Symptoms

• An illumination of check engine light and code P0268 code would be set in the ECM memory
• The engine may lack some power during acceleration when the misfire is active if the short is intermittent
• The car engine may stall or have other drivability symptoms related to a misfiring defective injector
• The car engine car start running roughly and low on power because of an inoperative injector
• The engine will have a misfire causing a buck or jerk and a rough idle
• If the short is on a main harness, then there may be other circuits having issues if the short is to another circuit

The repairs which you will have to do to correct this fault code are simply straightforward, you can surely pinpoint the necessary repairs on the basis of your diagnosis. Have a look at some common fixes:

• The fuel injector should be replaced if it has shorted and failed the resistance tests
• You must repair the wiring or connections between the injector and ECM or injector module for a shorted harness
• It is very important to replace the engine control module or injector module, depending on application, for an internal short or if the injector shorted the internal circuit

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of fuel injector harness, body control module, injection pump and many more. Now all your problems would vanish within no time.

Here are some steps which you should follow in order to diagnose this fault code:

• You should scan the codes and documents the freeze frame data so that the problem can be verified
• The engine trouble codes should be cleared and road test the vehicle to verify concern and code returns
• Run an injector electrical self-test to verify fault to number 3 injector or harness circuit
• The injector should be disconnected and measure resistances of the injector to see if the injector is shorted internally by following the pinpoint tests for the vehicle
• Then you should disconnect the engine control module or injector module and measure the wires resistances from the injector connector to the engine control module or injector module connector and ground to see if harness is shorted
• Make sure that you replace the injector or ECM injector module as needed if the failure is inside the injector or control module

Common Mistakes When Diagnosing The P0268 Code

• A common mistake can be failing to verify the code returns after scanning and deleting the code
• Most of the people fail to check the fuel injector harness resistances before replacing the injector