Just replaced the engine in my 99 S80 2.9 and now the car wont go pass 2K rpm and the abs warning light is on. Mechanic says that i need a new ecu and abs unit, is this true?? and if so how much should i pay for those parts. Thanx!!

 

I doubt the ECU is bad.
If the ABS module is bad try to get it rebuilt here. http://home.earthlink.net/~vicrocha/...vo_V70_ABS.htm

Who put the motor in?
If the ECU is fried then someone fried it.

 

how can i test the ecu to see if it is bad?

 

Usually if the car runs it is good. If it was bad the car wouldn't run unless something is really wacky with it.

Also make sure that they have the main ground connected to the transmission.