bureau_c

Since I am currently faced with the very real possibility that my engine wiring harness ('93 base MT) is bad, I started thinking about alternatives to shelling out big bucks to Mazda for a new one that will end up getting brittle and breaking just like the old one. It appears to be "regular old" wire in the stock harness. Has anyone experimented with specialty high temperature wire? I know they make various high temp wires, some teflon coated, others with other materials. Is that stuff ridiculously expensive? Does it retain its flexibility? I wonder if you could reuse the stock connectors and rewire them with a more long-lasting wire? Do the connectors usually hold up better than the wire? I know buying new connectors is difficult and expensive if not impossible. However, if you're just replacing the wire, even if the wire is epensive, the $800 dealer price (I've seen it as low as $600, but only once) gives one a lot of room to work.

jds

banzaitoyota

I use Tefzel Mil Spec 22759 Wire in my re-wiring endevors.

Resource

Check out my post here

https://www.rx7club.com/forum/showth...hreadid=166648

bureau_c

Good post, I've actually been reading that thread. In my situation, there was nothing that was obviously broken, at the connectors. Its more of a suspicion that there is one or more intermittent breakages somewhere in the wire, because after having my injectors replaced due to leakage, my car runs like crap...no feeback mode, backfires, overly rich, smoking, stumble when acceleration, etc. We've pretty much tried everything we could think of, to no avail. I just hate doing the harness without really knowing the cause of the problem, but I'm not sure what else to do at this point.

jds

Resource

Just take a couple days and cut all the wire loom off the wiring harness and remove the tape. Try tracking the broken or burnt wires from there. If you want you can even cut the wires where they start to get brittle and hard and just replace them with nice new wires. Just make sure you label them

bureau_c

Out of curiosity, where have you found is the best place to buy that stuff, and how much is it?

jds

Resource

I get the connectors from the local junkyard. You can buy the wire anywhere basically.

banzaitoyota

www.terminaltown.com

bureau_c

Cool, thanks for the tip.

jds