2010 Mazda Miata key battery replacement

SOURCE: 1990-Mazda miata

you have to reset your computer..it is kind of tricky..you have to pump the gas pedal three times on the third time hold it to the floor turn the ignition to on position then off then start the car it should reset it..

SOURCE: Miata has 61000 miles want replace timing belt to be on safe side

California has a law that Mazda guarantees the timing belt will last 105,000. I drove my 1999 Miata that long before I replaced it. Mazda ia a non interactive motor which means that if the belt breaks the car stalls and won't go anywhere. No damage to engine if it breaks.

SOURCE: 99 Mazda Miata Alternator Belt Replacement

there is one large bolt 13mm i think near the top and the tensioner on the side. just loosen that baby and push the alternator and take off the blet

SOURCE: Location O2 sensor after cat for Mazda Miata 2002

Just had BOTH of my O2 sensors replaced in my 2002 Miata.  The sensors are located
1. at the back of the engine compartment look down (on the passenger side ) You should see a spark plug looking device near the bottom of the engine (on the side) it has a short wire output that goes to a connector looking device on the other end. This O2 sensor had a short wire connector on the other end
Probably can be replaced from the top.
2.  This one is tougher --- From underneath the vehicle just after the catalytic converter  you should be able to see the Spark plug like O2 sensor .  The person who repaired it for me had to trace the wire from the O2 sensor.  It goes up into ( perhaps the frame or bottom of the vehicle INTO the Driver compartment under the drivers seat.  It is located near the Center Console  right at the carpet seam. It was about in a straight line from the BACK of the Drivers side Car Door.  He felt around -- and located the Connector (under the carpet near the center console. .  He checked underneath the car to the point where the wire disappeared --to confirm he had the correct wire.  
Once he located where the sensor wire led to --He had the old sensor out and wire connector disconnected and a  New sensor and the connector installed in about 10 minutes.  
The O2 sensor for this one was much longer than the first O2 sensor in the engine compartment He had to use some sort of standard release spray on the old sensor itself --to remove the old O2 Sensor.   Since it is exposed to the elements under the car.   Wrench, I think a screwdriver  and the spray were all the tools I remember him using.....

The autozone code indicated only the engine compartment sensor was bad.
The repair man told me Both usually go bad at the same time.  
I fixed the first one only -- turned out the warning light lit up a day or so later indicating the second O2 Sensor under the vehicle was bad.  Fixed that as well -- have had no problems since -- repair was about 4 months ago.....

SOURCE: key fob not working after changng battery

Bring it to a "Batteries Plus" type store; they can repair the fob if it is ony a broken battery clip. They did it for me for free! IF it is not the fob, then bring it to a dealer??