Is this the 2.5 KL ecu?

[Mradio]

I just bought the ecu from some guy on probetalk, it looks like my old k8 ecu, so I have no idea if the part i got is correct.
Here are the numbers on the ecu:
KL-50
Is there anyway to trace the number to the model/year it came from?

[Mradio]

I did some more searching, it turns out that this ID: KL50-18881-B (the number that is on my ecu) stands for 2.5 ecu for California cars.

What the hell is the difference between this and the other states?

[ClutchedMX]

diff numbers in middle. i think B is american and A is european or somethin.

[ikarus1]

Originally posted by Vlad:
I just bought the ecu from some guy on probetalk, it looks like my old k8 ecu, so I have no idea if the part i got is correct.
Here are the numbers on the ecu:
KL-50
Is there anyway to trace the number to the model/year it came from?

California emissions are more restrictive, so I would assume it runs less timing and fuel, and maybe the EGR operation is more aggressive.

[Mradio]

my idle is now perfect, no more jumping up and down at stops. It also seems like it burns ALOT less fuel, i will post how many miles I get out of a tank of 93. With the stock 1.8 ECU and VAF I was barely getting 150 miles on a full tank.