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· Registered
150 Posts
Discussion Starter · #1 ·
I have been searching like crazy for a quick answer on this with no official answer.

I have a T4M0 ECM in my build right now. My tuner prefers the A9L for drivability and stuff. I trust him, he is a very well known tuner in the area.

I have the ECM pin swap figured out.

Im running a manual fan switch so im not worried about the fan control.
Do I need a BAP Sensor? Or can it be tuned out?
Do I need a new Ignition box? Or can the RPM limit be defined in the A9L chip?

· Indo-Canuck-Yankee
2,938 Posts
Interesting that you're downgrading your computer from CBAZA to A9L. I'm thinking of going the other way around, possibly further to EEC-V. Look at for swap details.
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