Thread: P2288 Injector control pressure too high

Originally Posted by BradC

When you unplug the sensor the ECU is using an assumed and calculated "limp mode" value which will get you home and you see that with the VCV & PCV values. It does sound like the sensor is a problem and perhaps it's reporting a value much higher than is real, so the ECU is winding the PCV closed to try and drop the pressure.

I agree with your first port of call being the sensor and/or connector. I'd check both sensor supply rails (GND & +VE). Pins 2 & 3 on the wiring diagram. If the sensor had a bad ground it's going to report a high voltage, and vice versa for the +ve supply. Sounds like it's a bugger to get to on the EU3 which isn't going to make life easier.

If you are watching the iiD, does it indicate rail pressure with the ignition on and before you start it? Can you graph the rail pressure from ignition on to running? Does the values look plausible?

If the sensor or wiring are problematic it should show up before the engine is even running.

Hi BradC.
Thank you for your reply, all very good points. I will certainly make an attempt at checking the supply rails. I will also look at the iiD and get back to you. We are just in the middle of reaping etc and dealing with a prolonged drought, so may only be on the weekend. I will let you know. Cheers

Resharing useful video

P0088 P0087 Ford Territory Diesel Fuel System and how it works - YouTube