Freelander 1 Power Issues - Thread has Fault Codes

[suddons]

Hello All,

Long-time luker, first time poster.

So, I have a 2006 Freelander 1 TD4 with 95K on the clock & despite the level of stick the Freelander range endures, I am very pleased with mine and to be honest happy to learn more when things go wrong, (example ABS sensors & Diff mounts failing)

Any way, earlier today I noticed a lack in power going up hill under 2,500 RPM, felt and sounded like the Turbo was not engaging, also worth noting that if I switched the engine off and started it again Turbo kicks in which I understand makes sense given it resets it self, I live in the rural France at the top of a 13% 1km climb so any power loss dose not go unnoticed,

I used my iCarsoft reader to get the Fault Code P1470, confirming a Turbo problem, possibly a solenoid issue (?)

Just now, coming back from a walk, as soon as I hit 3,000 RPM going up hill BOOM! engine warning light EDIT with explanation mark (!)
limp mode engaged, also what can only be described as a low pitch wiring sound coming from the engine almost like a old train approaching a platform, after a few minutes back on the flat warning light is off and power is back, on the flat at 3,000 RPM plus no problem and from what I can hear the Turbo is engaging.

From what I can read mostly on LZ, all the above is pointing saying that Turbo gate(s) are not opening / functioning and the pressure is building to the point where the ECU takes over and enters limp mode in-order to protect itself, I could also be talking total ****e.

Bare with me here, I recorded a live session just now and just as she entered limp mode I got these numbers:

AirFlow = 741.20 mg/str
Manifold Pressure = 163.50 kPa
Low Pressure 347.40
High Pressure Rail 90070.64 kPa
Fuel Pressure Regulator Current = 1.84

I have no idea what they mean, but included them in-case they mean something to someone else.

Given the price of parts in France I often source them myself and then take it to the local garage.

Outside of replacing the Turbo solenoid which I am happy to do myself, is there anything other part that
fails causing the above issues ?

Or perhaps known issues with the Turbo it self, have read that "levers" can get stuck and need freeing up.

I also have EGR bypass fitted.

Thank you and looking forward to hearing from you all . . .

 

[guineafowl21]

Sounds like a split boost hose. Check all the hoses after the turbo for splits, bearing in mind that some may not be obvious. Most common site is the elbow before the EGR valve.

Alternatively, get someone to rev the engine until it hisses, then the leak should make itself known.

 

[suddons]

Thank you GF21, I did check all hoses but it was in the ****ing rain, so perhaps didn't quite give it the attention I should. I'll check back in
the morning.

 

[suddons]

UPDATE: can't see any holes, but when engine is rev'ed for sure something is whistling, silicone hose(s) ordered.

I live down a 2km farm track and with the rain, needed to give it a little welly to make the final turn, what was odd was that
the engine light when out, as if some blockage needed to be cleared, came back on 15 min down the road. EDIT yellow engine management light with an explanation mark

 

[suddons]

UPDATE: For anyone with the same symptoms turnout the solenoid was not working as it should, swapped it out this evening & seems to be find.
will give it a proper test with trailer tomorrow.