2005 Mazda RX-8 - Misfires

Engine runs ok, starts ok. Once the gas pedal goes past halfway everything is a misfire and i dont accelerate. I can drivr fine if i press gas lightly

More information about your car, please. Is the check engine light on? How many miles on it?

Hello, yes its on after the misfires. It has 75k on it.

Get the code read causing the check engine light and tell us what it is.

0301 cylinder 1 misfire

Your vehicle has a drive-by-wire throttle body. No throttle cable.

The throttle pedal position sensor sends a signal to the computer, and the computer operates the electronic throttle body from that signal.

So there may be a problem with this system.

But have someone try cleaning the electronic throttle body to make sure that isn’t causing the problem.


At least I would check for clean and secure connection between that cyliner’s coil and spark plug. Take out the plug, too, and see its condition and measure its gap.

its a 2 rotor rotary motor. it does not have cylinders.


Well yes i know that, but thats the error code. Just mean the 1st housing no?

you Know it’s a rotary motor. It’s the others who do not.