Thread: Restricted performance Gear box fault

Originally Posted by Warrzone

Some days i like my D2 better, yesterday was one of those days.

2010 D4 2.7 175,000km
has had gear box serivced approx 70k ago due again, but no issues

What happened
Yesterday while driving approx an hour on a 2 lane freeway cruising along at 100km
cruise control set, in D in 6th gear
40c day.
gear box and car working 100% fine, smooth shifts ect.
not towing, or any weight in the car.

I got the message, Restricted performance, gear box fault. twice.
stopped reset, drive again.

back to 100km for about 5 mins cruise on fault again.
reset drove with no cruise on left it in 5th no fault (i was nearly home) about 15 mins to go no more faults while driving around town.

I haven't scanned the car yet, I'm planning on getting a scan from a mechanic during the week.

my questions if an answer is possible with the above info and no scan.

What causes this type of fault?
in restricted mode it felt like the car had no drive, foot flat to the floor, and the car kept slowing down. i would be lucky to drive at 40km is that normal?
scale of 1-10 10 being a new 8k gearbox job how worried should i be?
would it be okay to keep driving?
is it more likely to be a sensor ect playing up?
is there anything i could check my self to narrow down the cause?

thank you everyone for you time.
Ben

same trouble D3 for several years off and on. reset by turning ignition off and then restarting. Even rolling in nutral. Turned out to be low rail fuel pressure, faulty sensor in high pressure fuel pump. replaced pump Tickels Disco Automotive perth. All good now.

hey I have a Reader now!

I'm trying to get some codes from my cheap Ebay reader.

its sort of working.
first up i got P0000 fault. ( i think thats just related to it not connecting properly) Im using an iPhone and the ELM 327 wifi modual

While trying to read codes with the engine running my dash is now saying (emergency break assist not available) (stability control not avaliable) Im not sure if the ENGINE scanner is causing this as I've never seen it before.

The codes I've got are U0402(68) P2290(00) U0402(68) U2023(86) some of the codes may not be relevant to my car as they come up saying its for a BMW. the last code (U2023(86). A google search of the last one seems to D4 related.



Im not sure if my can tool is really helping.....

thanks again everyone

its booked in 2 weeks time.

Originally Posted by Warrzone

P2290(00)

Bingo.

P2290 - Injector control pressure too low.

Welcome to the club. To quote Groucho Marx "I don't care to belong to any club that will have me as a member".

I guarantee by the end of this process you'll wish you weren't.

Do a couple of "clear & reproduce" cycles to be sure you get the same fault. You might also get a P0087 - Fuel pressure system/system pressure too low.

Wow. These things are dropping like flies!

Originally Posted by DiscoJeffster

Wow. These things are dropping like flies!

Yep. I currently have 2 faulty pumps courtesy of Ean, plus mine (I ordered a new one today from United). So I'll have 3 pumps to strip to find out *what* is happening and hopefully *why*.
The guys at United indicated they see a *lot* of these, but only in Landrovers. I wonder if the Fords have better fuel filtration?

It turns out that both the PCV and VCV can be replaced. They just can't be replaced while the pump is in the car. I figure if I have to pull the pump out, I might as well put in a guaranteed replacement with a warranty.

Must be a pain in the arse to change in the car.

Originally Posted by BradC

Yep. I currently have 2 faulty pumps courtesy of Ean, plus mine (I ordered a new one today from United). So I'll have 3 pumps to strip to find out *what* is happening and hopefully *why*.
The guys at United indicated they see a *lot* of these, but only in Landrovers. I wonder if the Fords have better fuel filtration?

It turns out that both the PCV and VCV can be replaced. They just can't be replaced while the pump is in the car. I figure if I have to pull the pump out, I might as well put in a guaranteed replacement with a warranty.

Hi Brad, do you happen to have a km correlation for each HPFP PCV failure?

Originally Posted by Eric SDV6SE

Hi Brad, do you happen to have a km correlation for each HPFP PCV failure?

I don't unfortunately. Ean might be able to give you a mileage on his, but mine is on a second hand engine of unknown origin. The third is a low mileage pump Ean purchased, but failed to work at all when installed in the vehicle.