XDAndy wrote:

So,

@Pete ... indeed I do!

But not wanting to let this go, I followed GS’s advice and took out the entire heat shield and wheel arch liner so I could have a proper look.




There’s a lot of gunk built up around the short hose. Both jubilee clips were ‘finger’ tight so I tightened them up further, cleaned everything down and had a look with an inspection cam.

Can’t see a split anywhere in it, but still.

The medium sized hose was tight at both ends with no signs of gunk.

My boost pressures are now

Click image to enlarge

So pressure is pretty much the same.

Guess I will keep an eye on what happens, but if anyone else can post some MAP pressures under load, would be great!

Hi @andy

May i ask how’s it going , did it work by just doing those clips up plse

Thks again

Gary

  

XDAndy wrote:

Dear all,

So, long running battle with turbo issues.

Not catastrophic, but definitely in the ‘annoying’ territory, and haven’t had the car long enough for it to be ‘part of the family’ so any conversation with my wife regarding £2k (est) on a new turbo is likely to trigger an hour long conversation, probably at an exaggerated level of volume, ultimately ending in “its not worth it. Get rid of it”, with a fair number of recriminations in thrown in there somewhere for good measure.


The IID codes I’ve been getting are

P0046-00 (68) Turbo/supercharger boost control solenoid - circuit range/performance
P0299-00 (68) Turbo/supercharger underboost
P132B-00 (2F) Turbo/supercharger boost control A performance

Click image to enlarge

Click image to enlarge

Click image to enlarge

The bit of interest here is

Quote:

Using a datalogger function, check the turbocharger actuator position. Turn the ignition on, engine off and command the turbocharger actuator to 95% pulse width modulated (PWM) then to 5% pulse width modulated (PWM) and recheck the turbocharger actuator position. The value at 95% pulse width modulated (PWM) should be 80 - 95%, and at 5% pulse width modulated (PWM), 0 - 20%.

The other interesting bit is in the description of the turbo actuator function

Quote:

The electric actuator moves the control vanes through an 60 degree stroke and has the capability to learn its own maximum stroke positions. The electric actuator is controlled via PWM signals from the ECM.

Click image to enlarge

Click image to enlarge

So my desire is to try get the IID tool to log what’s happening, and as part of this I’ve been trying to use the live values for

Boost pressure actuator bank 1
calculated load

Logic being they should be analogous to the variables above, but both values simply return “NA”

I emailed the gap team to query this, and got a very quick reply from Pat, but it simply suggested that some models of landrover do not return values for these variables.

My questions, I guess, are....

1: Can the turbo actuator be ‘programmed’ and it’s position ‘checked’ via LRs SDD diagnostic software?

2: If yes, is this something that could be done with the IID tool?

3: If not, does anyone know how to perform these steps?

4: If the actuator is ‘self learning’ in respect of its range, can it be reset after it has been freed?

5: Why is my Land Rover so damn frustrating!

6: How can I pacify an angry Greek wife?

Apologies for the long and complicated post, but would be interested to work on this

Kind regards

Andy