D3 2008 2.7 Engine System Fault, Code P132B (Turbo Actuator)and Sluggish performance

[Davetd5]

HI Folks,
Looking for advice about permanent sluggish acceleration and code P132B (Turbo Actuator).
Our 2008 D3 at 240,000km has been intermittently over the last 6 months throwing up code Code P132B (Turbo Actuator) combined with sluggish performance under 2000rpm. Usually it clears after a combination of cycling the ignition or clearing the codes or freeing up the turbo actuator linkage or putting turbo cleaner in the tank, but its permanent now and no amount of wriggling the actuator with a coat hanger will make it come good. If I clear the code it logs again straight away on the first start up.
I'm thinking perhaps seized VVT vanes, or tight actuator arm ball joint, or split boost hose.
The turbo was supposedly replaced a few years ago by a previous owner and I'd rather not have to replace it again if there's some other cure. Googling has shown that others have replaced the turbo, or just the actuator arm. Another possibility is boost hoses, has anyone had this and found a permanent fix?
Thanks Dave.

[SeanC]

HI Folks,
Looking for advice about permanent sluggish acceleration and code P132B (Turbo Actuator).
Our 2008 D3 at 240,000km has been intermittently over the last 6 months throwing up code Code P132B (Turbo Actuator) combined with sluggish performance under 2000rpm. Usually it clears after a combination of cycling the ignition or clearing the codes or freeing up the turbo actuator linkage or putting turbo cleaner in the tank, but its permanent now and no amount of wriggling the actuator with a coat hanger will make it come good. If I clear the code it logs again straight away on the first start up.
I'm thinking perhaps seized VVT vanes, or tight actuator arm ball joint, or split boost hose.
The turbo was supposedly replaced a few years ago by a previous owner and I'd rather not have to replace it again if there's some other cure. Googling has shown that others have replaced the turbo, or just the actuator arm. Another possibility is boost hoses, has anyone had this and found a permanent fix?
Thanks Dave.

Do you have a GAP tool? If you do you can go to Live Values / TD 2.7 / Boost Pressure Actuator /Graph
turn ignition from position 1 to 2. The actuator should cycle 3 times the turn ignition back to position 1. Should cycle 3 times again. If it looks like the picture. Then not actuator of turbo vanes. If it’s not smooth the actuator or turbo vanes.

189098

[DiscoJeffster]

Nice work Sean

[Davetd5]

Do you have a GAP tool? If you do you can go to Live Values / TD 2.7 / Boost Pressure Actuator /Graph
turn ignition from position 1 to 2. The actuator should cycle 3 times the turn ignition back to position 1. Should cycle 3 times again. If it looks like the picture. Then not actuator of turbo vanes. If it’s not smooth the actuator or turbo vanes.

189098


Thanks Sean, great t know there's a way to test the actuator and vanes. I dont have the GAP tool yet, borrowing another scanner from fellow LR tragic mate but not sure it has this function.

[Davetd5]

I followed the tip from the post by SeanC about adding two stroke oil to the fuel tank and within 24 hours the beast has been transformed! See the longer reply I put on Sean's post, but after MrsD3 drove to work and back just one day (so about 60km total), I cleared the codes, gave the actuator a decent lube with lanolin and wiggled the actuator about 200 times with a wire hook and presto, full power again! Not counting my chickens yet, but so far so good! Yee har!
Dave

[PerthDisco]

I can understand how the wiggling and external lubrication helps but can’t understand how the 2S oil in fuel could make any difference to the turbo. May help with injectors and fuel system I get that.

[Davetd5]

I can understand how the wiggling and external lubrication helps but can’t understand how the 2S oil in fuel could make any difference to the turbo. May help with injectors and fuel system I get that.

It's like there's two issues, a stuck actuator arm ball joint outside the turbo, and stuck vanes inside the turbo. I can only think that the 2so makes the exhaust gas more oily and lubricates the vanes inside the turbo to start moving again (ie become variable vanes again!). It worked a couple of times previously by putting Nulon turbo cleaner in the tank, but not the most recent time.
I had to free the vanes up properly with the wiggle wire and lanolin spray on the arm, but the 2so in the tank made it possible to get the actuator moving full range.

[PerthDisco]

Is VVT on hot side or cold side?

[DiscoJeffster]

Is VVT on hot side or cold side?

HOT. This is how they can run without a waste gate. They trim the VVT to maintain the boost.

[Davetd5]

Is VVT on hot side or cold side?

Hot side I reckon, otherwise the 2so wouldn't work
DISCO3.CO.UK - View topic - is my turbo actuator not working (https://www.disco3.co.uk/forum/is-turbo-actuator-not-working-86295.html)