Where the Sub Zero Device is? I looked it up on Alldata and their picture didn't really help me.

 

Answers to these sorts of questions are in the Factory Service Manaul. If you don't have the FSM, click here and download it in PDF format for free.

 

If it hasn't already been removed, there's a white plastic bottle on the passenger side firewall, under the cruise control box, beside the charcoal canister, between the strut tower and firewall, closer to the fender than the wiper motor.

There's also a sensor for it on the oil pan.

There is also a hose connection on the intake manifold, this might be the "device", it can be removed and blocked off, it's one of the smaller things on the intake manifolds.

 

alldata is pretty vague on our cars. i highly recommend the fsm

 

All right! sweet now I got a service manual and know where the Sub zero Device is. Thanks a bunch guys!

 

AllData is vague on everything.

The Factory Service Manual can be found in the FAQ For FC thread. It contains all this information and more, and is an essential tool for any sort of service work that needs to be performed on these cars.

Additionally, the Haynes service manual for the 1986 thru 1991 RX-7 (both turbo and NA) can be found at most local auto parts stores or purchased from any good bookstore (ISBN number 1 56392 007 7). It is only about $25 and is a great quick reference for things like this. Not only does it contain most of the information in the FSM condensed into an easy to read format, but it includes full wiring diagrams as well.

These manuals will answer 99% of service related questions for the car and if you intend to do your own repair work, you will need at least one of them. Preferably both, since the FSM is a free download.