
Where do i need to look exactally for the ecu codes i know the ecu is in the left hand side of my boot

What happened is someone hit me from behind and slight damage to bumper, bumper was written off and new bumper authorised by insurance
But they are saying that engine isnt to do with crash

So i thought i'd ask here b4 i get car back if anyone has had a similar problem with a power loss to the car it takes around 5,000 revs to get car moving and when it does its slow as hell 2nd gear gets to about 22

Car dosent backfire in such as a bang or anything so cant understand whats gone on