emerodi8

I'm having a problem with the idle on my 2004 rx8 stick shift. It's idling very low and eventually shuts off when I'm in neutral. I have to constantly rev up to keep it from turning off when I stop.

Can anyone advise me on how to get back to normal?

R.Buffington

Mine did that with a blown interior fuse, any extra lights on your dash?

monchie

^ What!?

monchie

How many miles on the odometer? When did the last time you did a tune-up? Also, check the status of the fuel pump too.

emerodi8

I recently replaced the spark plug, wires and coils. I got about 132k miles on it. How do I check the status on the fuel pump... Sorry I'm a newb

RIWWP

iTrader: (2)

You are already better off than monchie, who recommended that, since you aren't referring to it as a 'tune up'. He is an idiot, so don't take his suggestions.


Idle problems are never fuel pump related. Unstable or low idle or idle stall is usually one of these:

1: Low compression
2: dirty MAF ($5 can of MAF cleaner at the autoparts store
3: dirty / uncalibrated e-shaft sensor (unplug, wipe it off, replug, reset ECU)
4: Ignition failure

You ruled out #4, so it's one of the others. Handle #2 and 3, and if it's still there, take it in for a compression test, your engine is probably failing.

MariesRX8

Mine did something similar when I first got my replacement engine. Mazda cleaned the fuel injectors and intake (throttle body?) and it was OK after that.

R.Buffington

Yea I accidently touched wires working on the interior and blew a fuse and the car didn't function right. Replaced a 3$ fuse and it went back to normal

emerodi8

Thanks! I already cleaned the MAF. So I'll try to do #2. how do I locate the e-shaft? What's the process?

Wingznut

iTrader: (1)

Eccentric Shaft Position Sensor Removal/Install:
http://foxed.ca/rx7manual/2003mazdar...018221W02.html

How to reset ECU:
http://www.rx8blog.com/how-to-reset-ecu-on-mazda-rx8/


I would suggest cleaning the Throttle Body and Idle Air Control valve.

emerodi8

Cool thanks. Is there an easy way to clean the throttle body and the Air control valve. <------ how do I locate it?

Bladecutter

If you don't know how to locate the throttle body, you probably shouldn't try to clean it, either.

BC.

Wingznut

iTrader: (1)

Bah, don't be hard on him... We were all newbies at one time.

Search for how to clean a throttle body, it's easy to do. I'd explain it, but my RX-8 (and my wife) are awaiting me to take her out to dinner.

emerodi8

Yea I'm not very familiar with all the names but I can do the job if I know exactly the parts I need to work on. Thanks for the info guys