i think it causes bad/rough idle
carburetor or spark plugs
Bad clutching? Idle adjustment
might be bad motor mount / or electrical short
Typically with the Mazda RX8 Rotary engine vibration at revs as high as 6000 is down to engine damage suffered when oil was low. Your engine requires rebuild or renewal. Vibration at idle only is typically engine mounts, a know fault many dealers are aware of.
It is important to know the causes of problems in a vehicle. A surging idle can be cause by a bad o2 sensor, bad fuel pump, or a computer starting to go bad.
possible bad TPS, IAC, or ECT sensors
You could have a bad exhaust valve
Bad spark plug?Bad plug wire?Bad valve?*Bad piston?* Do a compression check to check engine internal condition
what is the down side of the 1997 buick park avenue
probably got a bad IAC motor
Actually, I am using the Unleaded 95 for my Rx 8 (1.3 192CH) 2008. I hope that it's not bad for the RX8 ..