To start I have a V2 and I've done a good bit of v8 tuning but I'm curious about 4 cyl support.

I'm looking to purchase a 2002 cavalier engine, harness, and ecu (p11 I assume) for a hotrod project.

Before purchasing I would like to confirm that I can flash it with a manual trans tune, disable vats, and possibly a few MIL codes. The p11 doesn't seem largely supported but can I perform these basic changes?

Thanks,
Ryan