Ecu swap problem. Help
 

I've just purchased a used Z4 ecu with bozspeed chip for my '94 wrx. I've swapped the ecu over and tried to start, but all I get is relays clicking and also the fans are spinning when trying to crank. It cranks, but is not firing at all... Anyone aware of a problem that could be causing this? Any help would be much appreciated, as I am stuck with the car in bits

Thanks

Swap crank and cam sensors for a starter.

does it run ok on the old ecu ?

Like JDM Stig says have you re-fitted the old ECU??

It runs fine on my standard ecu, and also on a standard Z4 that I have here. Soon as I plug the chipped Z4 in and turn ignition to the 'on' position, sounds like every relay is clicking inside the car and under the bonnet. It cranks over too, but doesn't fire at all

Cheers

If its chipped rejoin the j1 and run it on the z4 map.

hi there I have got an impreza wrx turbo 2L 2004, my ECU suffered water damage its a DENSO 22611AH751 .when changing do I have to change the ignition barrel as well or can I get my new/used ECU to be programed into my car? or can anyone repair my old ECU?

that's for later cars.

sounds like the chip is not working. badly seated dry joint etc.
as andy says connect the j1 resistor back up to rule it out.