Question about 2003 Mazda MPV
2003 mazda mpv. The heater hose had A leak by core replaced the leakin hose. I notice the pvc hose also bad and replaced the upper pvc hose. While doing thisi broke the tube that connect the maf sensor. Replaced the connector tube and disconnected the sensor plug but didn't disconnected battery cable. When started van check enginetcs on &off light are lighted at the same time and would not go off. Help please
Posted by Anonymous on
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Posted on Jan 02, 2017
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
PVC Valves do not need to be replaced
99% of them, have been on the valve cover
for at least 40 years
Unless you have a pcv vacuum hose leak
they do nothing, as far a your engine goes
They are there to regulate crankcase fume
Need to start studying & stop listening
to all the hype,including repair shops that
sell these things for no reason.
Posted on Jun 26, 2011
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