yea pcm is tuned and ready to go. there s aguy on here that just ran the ls pcm. he even told me which pins to transfer. int he 97 suburban swap in the conversion section. he is still using abs with the new pcm. i think it just need vss. i asked about a/c because i have a kwik bracket im trying to get rid of. im going with the older syle r4 compressor and a novak bracket. i need to just go get a new harness