rotary forever 77

Ok so this is how it goes, I have several problems and I will go one by one. (RX7 FC3S S5 1990 VERT)

Question 1.) Ok so I have a history of going through alternators like nothing (sometimes they would last a while then they would die out in less than a month) seemed random. So one day I decided to check the cables connected to the alternator pigtail and noticed they were BAD so I bought a new pig connector and wires. BUT when I replaced it I totally forgot which cable went where (yeah I'm a dumbass) when I was done instaling it worked pretty good for some time and it stayed at 14.4V was very nice and no more dining of the lights, but I did notice my rpm gauge would spike up like if it was getting a surge of electricity when I would just go to the on position (this lasted about 2 weeks) then I noticed when I would rev up the engine I would get a check engine light (just a quick flash) (yes I checked codes and got none) and now just recently the voltage would be soooo RANDOM when I would turn it on sometimes it would be like 15V and sometimes 12.1V or lower and sometimes it would be 14V (keep in mind the alternator is new and the battery). So thats when I got the bright idea that I might have not wired up the connections on the alternator correctly so I switched the wires (I noticed the rpm gauge didn't spike up anymore so I thought I fixed it) and tried turning it on and all it did WAS crank so I was like dammit I think I did wire it correct so I switched the wires back to how I first had them and same **** just CRANKS fried a fuse? gonna check today but any help will be great. Also which wire goes where on pig tail connector....

Summary of #1 (1)What is the correct way to connect ALT pigtail wires?
(2)What caused random RPM spike?
(3) Why a check engine light when I tap on gas pedal and engine revs?


Question 2.) For the second problem it has to do with the blower motor (mine went out a few month ago) since winter is here I need the heater so I took one off of another RX7 I have, at first the blower motor was working good then out of nowhere it started clicking a lot (AT ANY SPEED) EX. *click (works for 3 seconds) click click click (works for 5 seconds) clock click click* and sometimes it doesn't click but ends up clicking after a while, after about 7 min of working I can hear clicks.. IDK if this is important but when I first installed it my alternator went out like 20 min after installing..... which is what caused me to get my new ALT

Question 4) my interior door lights (the ones that turn on when you open the doors) would just stay on even when both doors were closed but the dim version, because when I would open the door they would get brighter.... ( this stoped but I thought Id still ask) and its just weird and random.)

IM JUST SO MAD BECAUSE I CANT ENJOY MY CAR IVE HAD IT FOR A YEAR AND ALL THE SUDDEN THESE PAST 3 MONTHS IT HAS BEEN TREATING ME SO BADLY

AND YES I TREAT IT WELL.


thanks in advance......

rxtasy3

iTrader: (2)

check the foxed.ca website for the wiring diagrams and service manuals.

Foxed.ca - Mazda RX-7 Manuals

Hvyman.

the interior light is prolly the driver soor switch. you can check it by removing the connecter and shorting the pins on the harness side. if the lights go out then its a bad switch.

the alternator is it aftermarket or factory? aftermarket alternators these days are total trash. id reccommend either good used or new oem. as it sounds like the regulator is bad in the one you have now.

for the blower motor check to make sure it has power. usually the blower motor resistor is the one that takes a crap in most cars. but you can check for power at the blower motor

Azteclance