Help please!!! CEL and 4k redline
 

If i press the gas a little before half way the car will redline at 4k and backfire like crazyyy right after eachother nonstop. Then the CEL light starts flashing. I did a CEL test and it kept saying "several rotors misfiring" could it have to do with spark plugs? I also feel loss of power like the engine is struggling to push the air out.
Also the car heats up alot.

Mods on the car:
CAI
cut off cat/resonator.
Stock catback is on.

coils

might as well change plugs, wires, coils altogether

Agree

I only have 24k miles on it. Already bought the plugs. their coming in tomorrow. Anyone else experienced this?

I keep thinking its because I need to free more air. If i put on my stock intake it's alright.

What aftermarket intake did you have installed?

Some piece of shit lol. Pepboys CAI crap. Looks the same as the AEM. I don't get why. Its sucking in too much?? Too little??

CEL also said running too rich. guy said intake is sucking too much air.

well, if it runs fine with the stock intake, then the aftermarket is the problem. if the issue persists with the stock, proceed with coils, spark plugs, and wires....although at that mileage, I would swap them out anyways

the intake is screwing up your MAF sensor. trash that crap. get pics of it installed first and post them here

The position of the MAF sensor (and the ID of the intake tube) is important.
Can't just throw anything on there and expect it to run unless it was designed for the RX8.

+1, post pics

http://i433.photobucket.com/albums/q...urbo/33333.jpg
http://i433.photobucket.com/albums/q...o/44444444.jpghttp://i433.photobucket.com/albums/q...1turbo/5-1.jpg

omg, now wonder it doesn't work
look where the MAF position is

huh?? lol where is it supposed to be?

Damn it... my work has the pics filtered.
I can only view attached pics.

Now I have to anxiously wait until I get home to see it.

http://i433.photobucket.com/albums/q...1turbo/1-1.jpg
http://i433.photobucket.com/albums/q...1turbo/2-1.jpg
http://i433.photobucket.com/albums/q...urbo/33333.jpg
http://i433.photobucket.com/albums/q...o/44444444.jpg
http://i433.photobucket.com/albums/q...1turbo/5-1.jpg

try that?

and 05rex8 where is the sensor supposed to go? its in there.

I've got ya covered Jon

thank you lol. anyone know what's wrong with it? where should the MAF be?

actually the maf may be fine, i guess that's the way it is on the aem
the piping looks too small tho, but it's kind of hard to tell from the pic what size
do you know the ID of it?

piping is 3" lol filter size is perfect also.

what you mean by ID?

sorry, ID=inner diameter
what is the ID of the maf tube itself?
also, is there any screens installed, like the stock one has?

I'm pretty sure its 3".. the entire tube. its plastic. but still its for wind.

I just thought of something, did you cap of the VFAD?

^^You beat me to it!

honestly i have no idea what the VFAD is. variable fresh air duct or something? no idea where it is though.

yup, you are correct

lol.

Also... did that intake come with any screens to install.
The AEM has them to straighten the airflow and reduce turbulence across the MAF sensor.
I don't think the MAF would like it if there were no screens installed.

where is it?? lol i have no idea what it looks like or what it is. whats it do?

and no it did not come with any screens. its a tube with the MAF just sticking in there.

anyone have a pic or description of the VFAD?

Here is where the VFAD nipple needs to be capped.
Keep in mine my intake manifold extension is upside-down in this pic.
https://www.rx8club.com/attachment.p...8&d=1230464194

3" ID is too small...the MAF will think there is much more airflow than it should...hence too much fuel...and extremely rich :)

you can use the screens from your stock intake probably to reduce turbulence

plug this if you didn't already, this is a pic swoope took:
https://www.rx8club.com/attachment.p...1&d=1231816582

edit: shoot you beat me this time Jon, lol

:werd:

Maybe... but those screens are a PITA to remove without damaging it (had to for the Racing Beat intake) .

LOL

kk important question. Do you think the AEM gets me more gains or this? running too rich isn't good? why?

http://i433.photobucket.com/albums/qq53/em1turbo/89.jpg
http://i433.photobucket.com/albums/qq53/em1turbo/99.jpg


Everything looks connected to me...

honestly the stock airbox with the inner walls removed, k&n filter, plus racing beat air duct would be better...and cheaper. AEM looks nice though....and it will def. work better than what you have now. It is something made specifically for the RX8. Running too rich is making your car run like crap....when you floor it it stumbles. Too much fuel.

look at Jon's pic and the one I posted....it is underneath the intake behind the throttle body

it doesn't show in any of my pictures?

no.

Do the 4 port 2004 AT even have a Vfad???

http://i433.photobucket.com/albums/q...turbo/kkkk.jpg

yes.

http://i246.photobucket.com/albums/g...lls81/kkkk.jpg