Plugged in IID to monitor settings and for both Temp and Voltages are coming up as 0. The DPF fill is also showing 32.1. Any ideas why zero readings and subsequently DPF now showing 32.1. The car also seems to have lost some economy, from average 35 mpg on run to around 33 mpg. It there anything I should be testing first, can you test the pressure sensors anywhere. Advice greatly appreciated. If the sensors have failed would it show incorrect DPF values.

Car does seem a bit hesitant until warmed up also

32g normally means the DPF is blocked and also normally means you'll be in restricted performance....

. Cheers, Greg
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2011 Vogue SE 4.4 with lots of toys in Stornaway

I have no faults and no warnings, main concern is why no readings from temp sensors. Driven 500 miles over the last couple of days.

How long have you had the car?

Wondering if the EGR or DPF has been mapped out?

You could try a battery reset (see wiki).
But if no warnings, then nothing to worry about?

. Cheers, Greg
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2011 Vogue SE 4.4 with lots of toys in Stornaway

Had the car around 6 months, I’m pretty sure it has done a couple of regenerations as panicked when fuel consumption dropped to around 20 mpg after being on a motorway for 10 mins, was low for around 15 mins. Do you know how to tell if remap has been done, had the battery out a couple of months ago and did reset. Still not sure why temp sensors not reading of IID.

When you say you are sure it's done a couple of regens did it not have a warning light on the dash to tell you? I've had my car for over a year now and have never seen a warning light. My wife's jeep is always popping the warning light on.

No warning lights. I just did what it should do, it shouldn’t get to warning light to do regeneration.

What sensors are you measuring for voltage in live values on the IID? Ideally go for Particulate filter differential pressure sensor - Bank 1 and see what the voltage is reading as well as the Oil quality fuel dilution factor (this needs to be below 7) as that will give us a starting point 2011 TDV8 Vogue SE

Brilliant thanks, will try later. As a precaution will be replacing hoses for silicone ones on the donut as I see one has been replaced previously. I can see a temp sensor has been changed recently on the service history, but unfortunately does not show part number.

The donut definitely needs the hoses upgrading to silicon, any leak on the induction side causes havoc with the DPF (trust me on this as I'm still having issues with mine) There are a number of posts on here where people have purchased a length of silicon hose and cut to length as it works out far cheaper 2011 TDV8 Vogue SE

Have you connected the IID Tool to your PC/Laptop lately to check the firmware is up to date. I seem to recall that someone else had an issue with readings so decided to re-flash the software/firmware on the IID to resolve this. 2011 TDV8 Vogue SE

Can you get any readings at all from the options within Live Values? Ideally if you have a member nearby who could plug their IID tool in it might help determine if it's a fault with the IID or a fault with the ECM not showing readings. 2011 TDV8 Vogue SE