My Mazda RX-8 shut off while I was parking now it won’t start, why do you think this might be?

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2006 RX-8 will not start.

2006 RX-8 will not start. Getting it to turnover but not firing. Replaced battery, plugs and starter and still not firing up. I am at a loss right now as to what to do. A mechanic told me to squirt oil into the spark plug wells and with the plugs out try to fire it up. Any help would be so greatly appreciated!

Not sure what the mechanic was trying to accomplish there . Start by checking for engine codes . This will eliminate a lot of things or point straight to your problem . Also listen for the fuel pump does it hum when you turn on the ignition on without turning the motor over . You should hear a humming sound for about 3-5 seconds coming from the rear of the car when you turn the key on without cranking the engine . If you dont hear this then your not pumping fuel and your car wont start. If can hear the pump and you didnt get any codes then pull a plug after cranking the engine for a while, maybe 30 seconds of cranking . Is the plug wet or dry. If its wet your getting fuel this is good if its dry your not getting fuel . If not then we should change the filter first to ensure were not dealing with a plugged fuel filter. Try starting it if theres no joy then move on to checking pressure on the fuel rail . There could be an issue with the fuel regulator . Next check the injectors . if you have access to a stethoscope then check the injectors while the cars being cranked over if there working you should hear a clicking sound from them . If there not then look for an electrical problem in the wiring harness , check the fuses and relays related to the injectors.

If the plugs are wet then the issue is in the ignition and you would most likely get a code . either coil , or crank sensor or possibly cam sensor . Any one can stop you and are difficult to figure out which unless its casting a code . Best piece of advice that you can take from here is get the OBDII codes read otherwise your just going to replace a lot of stuff needlessly . Hope this helps


I noticed you mention a fuel filter. I too have a 2006 rx8 and when i wanted to buy a fuel filter at Auto Zone they told me they don't list one for this car. Oreilly's said the same. Please tell me where its located and if this filter is a dealer item.

This car has a rotary engine, so there’s no camshafts or related sensors. There’s also no fuel pressure regulator at the rail it’s sort of built into the pump.

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