Dave,
California does do both under the hood inspection and tailpipe test. What I don't know is if they would notice the change in PCM if everything else stays the same. Everything should run...

If the engines and smog equipment are the same in a 1996 C1500 as the 2002 Express vans, shouldn't it be easy to get the upgraded PCM approved since it is going newer? Has anyone tried taking it to...

Hello,
I'm looking at finally jumping fully into the EFI world and leaving the carbs behind. Will be needing help with this. Current project is to upgrade my 1996 c1500 to a 411. Then continue...