Ford Focus warning light - what does it mean?

I had a DPF delete done in 2013 on my Ford Focus diesel. All was well until late 2014 when the powertrain light came on. I had the ECU checked, but no codes showed up.

Since then I've had my local remapping guy round four times now. He's put the original software back on and then done the delete again but the light still comes on and the power is reduced. Any idea what could be wrong?

Asked on 9 May 2015 by Dan25e

Answered by Honest John
What you need to do is to have a DPF refitted because what you did in removing it was illegal and the car will fail its MoT.
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