Hi i have an 04 ocho it has 82xxxx miles on it today i bought used and i have never changed the coils on it or wires just spark plugs ones since ive had it. And today igot up to go to work i work like two miles away and i didnt warm up the car all the way like i regularly do an d now it wont start and everything work ligh t windows what can this be

 

Fouled sparkplugs

 

well then you need to change them.

 

Possibly flooded the engine if you shut it down before it was warmed up. Bad spark due to old plugs/coils would make it that much more likely to have trouble firing the engine, even after performing de-flood procedure (either the one in the owner's manual or other options you can find out about with a search on this web site).

Is your 2004 a manual or auto tranny? If manual - you might try getting it rolling to 20MPH or so and pop the clutch in second gear. See if this fires the motor for you.

 

you have a used RX-8 and you haven't bothered to change out parts that we all know can (and often do) fail prematurely? And you're surprised that it flooded?

thread title should be changed to, "I'm killing it!!!!!!!"

 

Well I changed the sparkplugs and yeah it turned but there is this shaking that doesnt stop and th engine light is flashing. The shaking starts from the throtle body and it goes down all the way thru the cat
By the way it a manuel

 

blinking CEL usually means misfire.
misfire is usually caused an issue with the ignition system. (coils, wires, plugs)
if it stays solid, try to get the code pulled.

 

+1

 

I did pull out a code before all this happened they told me that it was the perge valve. What about the shaking how can u explain that

 

dont worry about the shaking right now. You NEED to change the coils, wires and plugs. If still shaking, there are other reasons too. I dont know how well your taking care of your car but you may need to clean the MAF, and check the motor mounts too.

 

read Pico's posts https://www.rx8club.com/series-i-trouble-shooting-95/rough-idle-when-hot-205640/

 

I love these threads

 

Ichanged the coils and the spark plugs and the shaking still continues i checked the motor mounts and they are ok

 

is the ac on? exactly what is shaking? have you tried the search feature?

is the shifter shaking or the entire car?

 

No the ac is not on but before all this yeah if i would put the ac on and yeah it would shake.yeah the whole car shake and this tapping noise comes out. U could follow the shaking going from the the throttle body dount the headers and down the catalytic. Byt the way i have a k&n installed

 

Just a K&N filter or complete aftermarket intake? You need at least one wire mesh in the assembly or you will get a rough idle. Did you read the thread about resetting the Eshaft? that can also help with the rough idle. As far as the intake, did you clean the MAF with MAF cleaner? did you recently add the intake or at least recently re oil the filter?

 

K&n short ram intake

 

how long has it been on? please answer my questions or I cant help

 

Like two years

 

You need a screen to smooth out the flow.

Also checj the underside of the throttle body. Make sure the cap is on.

 

did you reset the Eshaft sensor?

 

The intake has a screen. No i haven check that were exactly is that? Well i did try to reset it isnt that when u turn the key to the on position the pump the brake 20 times fast? Is that it ?

 

correct.

 

It will take a few drive cycles though to smmoth out if that was the problem

 

so some new codes came out today
p0506 and p0301
can anyone help on ewhat these might be