95 2.2 into a 97 LGT

[toyota>subaru]

I just want to ask if anyone has taken a Subaru that originally had a 2.5 in it and put a 2.2 in it. Then took it to the dyno to see if it was running lean or anything.

I have mine running off the 2.5 harness and ecu and it works great but obviously I cant see it from a scientific point of view.

If possible I would also like to know if the 2.2 performs better on its own ecu or on the 2.5 ecu.

[mike-tracy]

I did the opposite, on the 2.2 ECU the 2.5 was running super rich, till I swapped in the 2.5 ECU. So what you said makes sense, running the correct ECU should help it run better.

[toyota>subaru]

Yeah mine is not running super rich. It gets good gas mileage and runs really well. I am more worried about going lean. Which car did you run that 2.5 in? I have seen a 2.5 ecu get put in a 95 lsi and the fuel pump did not get signal. The person just ran the 2.5 off the 2.2 ecu.