Hi there,
Last fall we took possession of an 85 bus but it was late in the year and we barely drove it, or even got familiar with it. So now I’m poking around because I want to buy an oil filter, and:
The ECU s/n indicates an ‘03 WRX, 2.5, but I’m seeing EJ20 on the block. Is this a usual arrangement?
I know there are many variables; I’m just starting down the path of deciphering what I’ve got here. (Can an EJ20 be bored out to make it a 2.5? Might the ECU have been reflashed to suit an EJ20? Does it matter very little? &tc….)
Tx,
Jim
