Hi,



Looking for a little guidance or advice here, been having issue's with my Moms JagXF 2.7D 2009, last year had the high preassure fuel pump replaced, was told it disintegrated, issues were restricted performance, DSC coming on the display, and DPF filter alert regular.

One day car wouldn't start, this is when it went in, diagnosed with high preassure pump, and was subsequently replaced, had car back and seemed to run fine for a few months.

So we had the new pump on as explained above, DPF light still coming on, then it stayed on red, so had the DPF filter replaced,

So that brings us to now and the following issue's

1) DPF light still coming on after two or three weeks of driving, reset it with a long drive, but will come back on again

2) DSC light coming on and triggering restricted performance mode and car slows right down, this seems to happen mostly as I put my foot down to accellerate hard, driving "miss Daisy" style DSC and restricted performance sometimes wont come on, but as soon as I floor it, both errors return.

Took it to have a diagnostic and it has come up with the folloring faults in the attachments (there were a few other faults not related to the running of the car so not included them).

So my question is, any ideas what could be causeing the fault, any suggestions how to go about fixing the fault

I have been told there may be an issue with injectors (if I replaced I am assuming I need to reprogram and balance cylinders .. is there any freely available software that I can use (I use forscan when needed on my Transit, so is there something similar for a Jag)

I used to be a mechanic back in the 80's, cars moved on a bit since then, but I am still pretty handy, replaced the injectors in my transit last year and was able to reprogram because I had forscan software to do that.

Trying to keep this cheap for my Mom, well as cheap as possible.

Jus to add MPG is around 25MPG driving carefully, goes down if driving in a usual way (unless restricted performance kicks in) .. what MPG should I be looking at approx ?

Thanks in advance

Kev

 

Hi,

I have experienced a very similar situation as described.
1) DSC and Restricted performance: Took me a month to solve. I changed MAF and looked for air leaks. It was not the case for me, but usually, it is for the majority. The case for me was that one of the TURBOS (drivers' side) seemed to stuck while accelerating. Cleaned the "movement axis" (sorry I have no idea how to name it properly) of the faulty Turbo and the problem was solved. I was told that it might be that the Turbo itself needs replacing. But the cleaning procedure fixed it.

2) Car not starting. I have experienced the same, however, I found out the problem was that the fuel pump was on its way to stop working. Nevertheless, the car sometimes started, sometimes not. Now it starts fine. I did not change anything since fuel pump replacement might be costly, so I wanted to make sure it is the case. How were you diagnosed that your high-pressure fuel pump is faulty?