Question about 2000 Mazda MPV
Is there a way to get to and change out the upper front oxygen sensor on my 2001 Mazda MPV without removing the radiator and AC condenser?
It looks as if the engine will need to be removed or the radiator and condenser will have to be removed to get access to the sensor and change it.
I replaced this sensor about 6 months ago. (If this is the sensor that is located near the firewall on the exhaust manifold under the ignition coil.) The only way to easily replace it, is to remove the MAF and air filter assy. then remove the intake plenum, remove the ignition coil, and then you'll have access to the sensor. You'll need a sensor removal socket. If the socket slips around the hex of the sensor, then you'll need to use a regular deepwell socket and cut the cable from the top of the sensor, or use a combination wrench that will fit it.
The most difficult part of removing the intake plenum is getting the nut loose from the EGR valve. DO NOT just remove the two bolts holding it to the intake plenum. It will not line up correctly during re-assembly and may not seal tightly either.
This took about a Saturday to do. You'll need new plenum gaskets to replace the old. While your at it remove the throttle body and clean the carbon from the ports that lead to the EGR valve and replace that gasket as well. The gaskets will run about $30.
Posted on May 04, 2009
No you don't have to move any of that you need a "crow foot" type oxygen sensor it looks like a short brake line wrench that you can put a 3/8 ratchet on it with an extension. This will help you to get this sensor out. Good Luck
Posted on Dec 30, 2008
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Posted on Jan 02, 2017
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