CLA220D Loosing Power when ABS light comes on

[Tfak1992]

Hi

I'm looking for some help regarding an issue with my 2013 CLA220D.

The car was remapped around 5 months but ever since I'm having issues. The main issue is is that when driving if the wheels spin at all causing the ABS to come on the car goes into reduced power and does not come out off it until you turn the car off and start it up again, if i have traction control off and the wheels spin the cars fine (With it being wet and icy recently this was making it difficult to drive),

The Guy who remapped it said the car already had a map on it if that helps.

I'm also getting 2 faults on a diagnostics kit
- P008791 Fuel pressure in the system is to low
- P226322 The boost pressure deviates from specified value

The car seems to be using more fuel, i used to get around the 55mpg mark on a good journey, the past month i done a good drive to Heathrow in good conditions (150 miles) and only managed to get 44mpg, unsure if this would be a good tell sign off a problem.

The engine management night has came on twice in the past 2 weeks, i have replaced my fuel filter but hasn't sorted the issue, unsure if the issues are all linked to one thing or two separate issues regarding the faults and loss of power/ABS

Any help would be greatly appreciated.

Thanks

 

[E55BOF]

Get the map put back to stock?

 

[Tfak1992]

Get the map put back to stock?

Definitely considering it as seems all the issues have started since the map was done 5 months ago, unsure what all the faults are and if they're related to having a map done.

When the guy mapped it he said it already had a map on it, the car had no issues before so why I'm trying to figure out if the map he added was dodgy or there's genuinely issues with parts on the car.