Hi guys,
Hopefully a Quick question—do you think a 1998 Subaru Impreza ECU would work in my 1999 Subaru Impreza? I’m eyeing one as I’m doing an engine swap from NA to Turbo but not sure if there are any differences between the two years that might cause issues.

Anyone have experience with this? Would love to know if it's a simple swap or if I’m asking for trouble.

i have attached a photo of the ECU In question.


Appreciate any advice!

 

Well that is a 3 plug V3/4 ECU and the 99 ECU should be a 4 plug V5/6 ECU.
If it's a JDM car should be no problem with immobilisers.

 

Not too sure, but I think no

The ecu on MY99/00 are different from the MY98 ones : As you are in Australia the MY year may vary from the UK?

Don may comment shortly....

 

Australia is included in the General and Europe Market area.
The 97 and 98 Turbo ECU is the same for UK (EK) and Aus (KA) using the EJ20G.



ECU PIN OUTS for 97/98 attached as pdf's

The 99 2.0N/A should be as below and also a 3 plug but plugs are different?



The 99 Turbo model uses the 22611AE800 series of ECU's which appears to be a 4 plug


No other info available