Car had an engine fire. I installed new vacuum line, fuel injection hose, and rewired nearly everything. I have no idea where the wire in the picture goes. It comes up under the lower intake on the driver side. Maybe a ground? Any info would be appreciated. Forgot to say I have been driving the car for about a month with the wire unconnected.

 

I'm not sure where the wire in the picture goes. It could possibly go to the alternator. Any help from you guys would be appreciated. It comes from the harness between the intake and alternator. Thanks

 

Does the wire have a thin white stripe to it at all or just solid black?

 

The wire is solid tan/brown. I tried to post a better pic but was limited to the pic size.

 

The Factory Service Manuals for all years of RX-7 (and many other rotary cars) can be downloaded for free here: Foxed.ca - Mazda RX-7 Manuals . They contain all common service information and more, and are 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. The Haynes is a good quick reference covering 99% of questions, while the FSMs show complete and detailed procedures.

 

Thank you for the link Aaron. I may have to buy another manual I know I have 1 but can't find it. Again thanks for the info.

 

A link was provided which is for an online copy of the FSM thus you really don't have to purchase a manual especially since you need to look at the wiring diagram and the cheap manual has poor diagrams.

 

Yea I downloaded the fsm and found out the wire is a ground. I looked in my manual but couldn't really tell. Thanks Satch and Aaron.