Error code P1262 on Ford vehicles indicates a potential issue with fuel injector number 2. Several factors can cause this code:
- Faulty fuel injector 2: The injector itself may be malfunctioning.
- Fuel injector 2 wiring issues: The wiring harness could be interrupted (open) or short-circuited.
- Poor electrical connection: A faulty electrical contact at the injector 2 connector.
- Failed fuel injector interface module: The module controlling the injector may be defective.
How to resolve code P1262 on a FORD?
The first step is to carefully examine the possible causes mentioned above. Start with a visual inspection of the wiring harness and connectors associated with fuel injector number 2. Look for any signs of cable damage and check the condition of the connector pins: ensure they are not broken, bent, pushed in, or corroded.
Important technical note:
It is crucial to prioritize checking the wiring harness connections located at the valve cover, including those underneath the valve cover itself.
Symptoms associated with code P1262:
The most common symptom is the illumination of the engine light (or the “Service Engine Soon” warning light).
Meaning of code P1262 in FORD:
Fuel injectors are supplied with high-pressure fuel via the injection rail and are responsible for injecting a precise amount of fuel directly into the combustion chamber. The injector is actuated by a piezoelectric system, controlled by the Powertrain Control Module (PCM). During the main injection phase, the activation duration is approximately 0 to 400 microseconds. The accuracy of the injection cycle is ensured by precise control of the injector opening and closing times through the piezoelectric actuator. Error code P1262 is detected by the fuel injector interface module when it identifies a problem in the secondary fuel injector circuit (usually the injector located at the rear).