Vertigo RT

Just bought a 2005 6spd. Amazing car, for sure (;

Love the way it rides, drives and handles... but having what I think are ignition issues.
Throws a misfire in rotor 1 and idles TERRIBLY about 80% of the time... it seems, that a battery disconnect resolves this issue temporarily until it is fully warmed up and driven about 10miles.

Gonna look around and see what I can learn, as this is my first RX and rotory motor.
The forums look great, and I look forward to getting to know my RX and the community here better

RIWWP

iTrader: (2)

Check the announcement at the top of this subforum for a list of first threads. The first two threads both have the information you need to resolve the misfire. Clean the ESS, replace the coils, wires, and plugs, and reset the e-shaft profile, and your issue will likely disappear.

Vertigo RT

Starting the process in the morning, appreciate the help, bro

Emery_

iTrader: (8)

Check the suffering from a misfire thread, also do what RIWWP said, I would only like to recommend you reset your fuel trims as well with your new ignition. Which can be done so by unplugging your positive terminal for a few mins.

monchie

Welcome and read thru the stickies to learn what you can about the rx8. Post pics of your rx8 will ya...

Mazdaspeed RX8 ver2

Welcome welcome! You might want to do a quick tune up, change the spark plugs and ignition coils

Stephen T

Hi, sorry you've got dramas with the car but anything worth having seems to make us work for it. The 8 is no exception!! Enjoy the toy!

Vertigo RT

UPDATE
After bringing the car home and it sitting overnight I realized that the engine had been WAY overheated. Yesterday it was about half inch right of the midway mark, today, ALL day it has been 2 ticks left of halfway... The guy and his wife HAD mentioned several times that he didnt know how to drive stick, so Im assuming he drove about 250miles in 4th at hwy speeds... Drove around all day today without issue (aside from a pretty bad idle, which I think may be the MAS as it causes erratic idle) even ran the AC just fine.
Am no longer having any issues with misfires. (:
However, I STILL veryyyy badly need a new clutch, lol... any suggestions?

Emery_

iTrader: (8)

The temperature gauge is actually a dummy gauge, and at about 150 °F should be reading close to the middle. It would only move past the middle mark at extreme temperatures maybe 250+? Not quite sure when, but by then you have way more serious issues going on and your engine is toast, so you better hope you didn't see that temp gauge past the middle... Maybe you were looking at oil pressure?

Also I advise you listen to the advice (clean ess sensor, maf sensor, new plugs, wires, and ignition coils, reset fuel trims and 20 brake stomp reset), just because the misfires are gone for now doesn't mean your ignition doesn't need maintenance...

Emery_

iTrader: (8)

Also bad idle is related to ignition... And what makes you think the clutch is bad? There are ways to check if it could be without dropping the trans...

Vertigo RT

Was for sure the engine temp (water temp) but day 2 and I still havent gotten it above midpoint, and it runs fine.
I still plan on replacing all the ignition components, just waiting for a day without rain.
Clutch is slipping, and three different people, apart from myself advised on replacing it... including the guy that sold it to me.

FrankieAvocado

Out of curiosity, how are you determining this? I just want to give you a quick heads up that if you're hearing an annoying buzzing/chattering when idling with your clutch pedal out (and you shouldn't be idling at a stop light with it in) then you're probably just hearing a bad throw-out bearing. I think 80% of all of us here have one and it's not really worth fixing since it'll cost a ton and might go bad again anyway. Sort of a weird thing to note. Anyway, if it is just the clutch plates then you can find all kinds of excellent aftermarket ones for around $100 bucks but expect to pay a high price for installation since it involves some transmission dis-assembly. Finally, if the issue is more with your shifter having trouble finding gears (I have this issue too) I'd suggest just replacing that with a new OEM one or an Axial Flow short-throw (that's my plan next month: RX-8 SS DIY - Axial Flow Super Charger & Short Shifter). That's usually just an issue with the damn plastic bearing thing getting bent and warped from heat and aggressive shifts (I uhhhh...I tend to manhandle things a bit sometimes).

Anyway, good luck with the car. I love mine and I would HIGHLY recommend doing work on your car yourself since it makes it a lot more personal.

RIWWP

iTrader: (2)

^ he actually said how he was determining it: Slipping clutch. Which he correctly interprets as needing a new clutch.

I wouldn't put any faith in a $100 clutch though. OEM is the best for an N/A RX-8, and runs you about $360+ shipping for the clutch disc, pressure plate, and bearings.

Vertigo RT

Clutch finally gave way today... just spins...
I can actually put the car into gear without disengaging the clutch and the car won't stall, lol...
New one goes in tomorrow. Stuck with OEM.