Flashing coil light

[fishkeeper84]

An issue which has so far stumped myself and my garage. Code p132b on my mark 3 Mondeo estate 2.0 tdci with 80k.
So far its had: new glow plugs, new egr, the turbo was removed and tested and the veins were cleaned, the egr cooler and the inlet manifold were also cleaned, new boost pressure sensor, replaced MAF with a used unit (can't find a new original), refurbished turbo actuator and I've used a fuel additive for the last 2000 miles or so.
Symptoms are that i get the flashing coil light when the car is cold (far worse in cold weather), the engine noise is deeper, rougher, and theres a serious lack of boost, I then drive it 20 seconds around the corner, turn off the motor then start her up again, after that there's no problem at all unless i hit 3500 revs when she goes into limp mode, otherwise motorway or town driving has no issue, even when the engine is still stone cold.
The car is in good shape, always looked after and never a single advisory.
I'm really at a loss now, has anyone got any ideas?

[GreenV8S]

https://www.troublecodes.net/p1codes/p132b/ provides quite a lot of information about the symptoms and potential causes of the P132B error code. I would start there.

[njw1]

I had a mk3 2.2 TDCi with the same symptoms and it was the turbo. Despite stripping and cleaning the turbo there was a point at which the vanes were very slightly sticky when moved back and forth, this was apparently enough to put it into limp mode.
Fitting of a good used turbo cured the problem completely.

[fishkeeper84]

njw1 said:

I had a mk3 2.2 TDCi with the same symptoms and it was the turbo. Despite stripping and cleaning the turbo there was a point at which the vanes were very slightly sticky when moved back and forth, this was apparently enough to put it into limp mode.
Fitting of a good used turbo cured the problem completely.

This is interesting, I'd ruled out the turbo as it's been tested and cleaned.

[fishkeeper84]

GreenV8S said:

https://www.troublecodes.net/p1codes/p132b/ provides quite a lot of information about the symptoms and potential causes of the P132B error code. I would start there.

A good read thank you. The list of causes has been gone through thoroughly, still no joy.

[njw1]

fishkeeper84 said:

This is interesting, I'd ruled out the turbo as it's been tested and cleaned.

Apparently if there is even the smallest amount of resistance when moving the vanes in the turbo it will cause problems. With the actuator arm disconnected mine seemed to move very freely except for a certain point where they would stick ever so slightly now and again, this was after stripping and cleaning the turbo so must have been a very slight amount of wear.
I took a punt on a cheap but good second hand turbo because I wasn't convinced either and it cured it.
What I was told is that the actuator arm when disconnected should feel like it isn't actually connected to anything when moving it back and forth, if there is ANY resistance then the turbo's no good.
Another thing I was told was that a lot of people change just the actuator which often cures limp mode issues but only temporarily as the actuator rarely fails of its own accord, it's the sticky turbo vanes that kill it.