Hi peeps.

I had the dpf removed, engine remapped and turbo replaced (with uprated bits and bobs) all about 18 months ago. Now, the powertrain light comes on and the car goes into limp mode but here's the thing. Even the local Ford dealership equipment won't show up any codes.

Oddly, the light doesn't come on until the car has got about a mile down the road (or if I push it past 3000rpm) after a cold start. When the engine is properly warmed up there's a bit more power.

Any advice would be greatly appreciated.

Cheers, Dan.