issjoe

Thank you for the answer. I searched the old posts, but couldn't figure it out.

Can I do a direct swap of a 2000 ej251sohc into a 1999 Subaru Outback Limited with ej25d dohc?

Thanks for your response. Does that mean the 96 thru 98 ej22 are plug and play also, except for the exhaust y-pipe and egr? Does Subaru use the same ecm on 95 thru 98 ej22 and 96 thru 98 ej25?

I have a 1999 Subaru Legacy Outback automatic with an unusable EJ2.5 DOHC due to extreme overheating . I want to put in a EJ22. I need to know what year EJ 22 will work with my ecu/wiring harness. I've read no SOHC engine like the EJ22 will be compatible with a 1999 EJ 25 ecu/wiring harness. I've read elsewhere some EJ22 SOHC are plug and play. Has anyone actually done an EJ22 SOHC swap into a 1999 Subaru Legacy 2.5 DOHC?