How do you tell whether or not an ECM has VATS if you're unsure of the year it is?

 

VATS is in the memcal, not in the ECM.

 

I know that but the memcal is part of the ECM and I was wondering how you tell whether it has VATS or not if I don't know what year it is.........geez sorry for not getting so technical.

 

I didn't mean that in a nasty way.

I don't think you will be able to tell by looking at the ECM. It should be the same part number as non-VATS ECMs.

If the harness is still attached, look for a wire on F10 (it'll be the green/yellow connector going into the ECM). That wire is for the VATS module.

Seriously, I think that's about the best you can do.

 

The only thing I can think of, if it is out of a Camaro or Firebird is to take off the cover of the ECM for the prom/memcal, get the numbers off of the prom and use this link as a reference to see if it has vats. For reference if it is a Camaro prom, Vats started in 89 I believe, and Firebirds had the option available in 88.
https://www.thirdgen.org/newdesign/faq/thirdgen.shtml
Good Luck!

 

sorry for biting back.....I was not in the best of moods and yeah...you know how that is I'm sure. Thanks for the help though found my answer...bought a TPI off a firebird and I heard that the firebird had VATS like starting in '87 so I was kinda worried that after I hooked everything up the car wouldn't start but I got lucky and it's off a firebird that didn't get that option.
Again sorry for taking it a little harder then it should have been and thanks for the help!

Mark