Fluctuating RPM at idle

mercredi 12 août 2015

My 05 RX-8 is fluctuating between 750 and 1000 RPM every few seconds when idle. When it hits the low end of 750, the car vibrates a lot. I'm also experiencing problems with the car picking up speed when it happens. I can floor the gas pedal and it still takes a while to get going.

A video of the issue:

When it happens:
- When in drive at idle
- When the engine is HOT, doesn't seem to happen for the first ~15 mins of driving

What I've done to try and fix:
- Replaced ignition coils
- Replaced spark plugs and wires
- Cleaned MAF Sensor
- Cleaned throttle body valve
- Changed air filter

My Car:
- 2005 AT
- 63k miles
- All stock



I'm not sure what else to check so any help is appreciated.


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