SOURCE: Mazda mpv O2 sensor wires?
Put some penetrating oil on them and let it soak overnight. This will break up the rust and other build up. Make sure that it is penetrating oil, you can get it at any automotive store.
SOURCE: O2 sensor
There should be two O2 sensors. If you look inbetween the engine and radiator following the exhaust manifold down to the exhaust pipe you should run into the 1st O2 sensor, following the pipe down stream under the vehical towards the catalytic converter you should find the second O2 sensor. The 1st O2 should be easy but the 2nd might be difficult depending on your abilities. Coils will depend on 4 or 6 cyls, 1 for each cyl. Repair man, go to, pep boys, napa, auto zone, advanced auto parts to name a few.
SOURCE: Trying to replace rear O2 sensor on 2002 mazda miata
you have to remove the exhaust manifold insulator. to get to the 02 sensor.
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: radio fuse
The radio fuse should be in the fuse box in the drivers foot well.
Hope this helps,
Sherwin
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