I have a 91 Z28 and i looked up under my floor behind the dash board and saw a silver box that is almost similar to the ECM but smaller. I'm not sure what it is and was curious to know what it is. Since i no longer have a factory ECM i'd like to remove the complete VATS system including the black box and etc. Any ideas?

 

is either a pcm of sdm i can check all data tomorrow at work and let you know

 

there is a vats mod,daytime running lamp mod,air bag mod, located under the pass side hush panel

 

i have a box like that too, but it is minty green any ideas?

 

I have a 1986 305 TPI iroc ,I have just fitted a new ecm while
under the dash I noticed this black plastic box about 4x3 inches
I would like to know what it is and what it does ,I cant find in
any work shop books ,it must do something

 

Steve, is it located most towards the pass compartment? If it is, it may be the cruise control computer.

 

Maverick
Thanks for your reply ,yes the box is up under the dash on the r/h side about centre of the rhs its not causing any problems I was just wondering what it does ,when I get some time I will try to get it open and see what is inside , the wiring of this car has all been altered as it has been converted from left to righthand drive I have owned the baby since 1988 when it was first imported to australia ,I am now in the process of rebuilding her ,pretty hard going as there is no info over here I hope you guys in the US can help me out from time to time

regards STEVE

 

anytime, Steve. And as for the cruise, I personally wouldn't use it becuase you can have it running and go down the road watching your gas gauge go down .