Weird through progressive boost
 

I was on the m62 yesterday and was progressively accelerating the all of a sudden the car felt like it hit a brick wall for a split second. i looked down and the engine management light came on for that split second and the revs dropped to 0 then came back alive. it's done it twice now any ideas ??

Mine done the same not so long back, was a split vac line on mine, check all your vacuum lines to start :thumb:

Might be over boosting. Ecu cuts ignition if boost pressure goes over limit. It is most noticeable in cold weather. Might be a sticky waste gate is solenoid valve.

^^^ thought they cut fuel on over boost not ignition???

Could well be just over boosting mate, cool weather leaning out the mixture causing more boost,.

Feels like hitting a big rock. Mine did it for weeks until I got a perrind 3 port put on and had the mat adjusted to open waste gate fully.
I thought they cut ignition and fuel to prevent lean out but might be wrong and may depend on ecu. I am sure a mapper will put me right.