20 Most Recent 2002 Mazda MPV - Page 9 Questions & Answers

One is controlled by the Air-conditioning........and one is controlled by the thermostat, cutting in and out when needed........

If the other one is on all the time *(with ignition on), then there is a fault in the AC system wiring

you need to post more detail.
could be an electrical.
could be not getting fuel
could be the choke
could be fuel injectors
could be spark plugs / wires/ HV coils

change air filter and pcv valve.

When my MPV had this problem I first had the Mass Airflow Sensor clean. It finally got so bad that I had to replace the Sensor.

I would start by doing a tune up; replace the spark plugs and wires, change the oil/oil filter, and the fuel filter. All this should be fairly inexpensive if done yourself. If this does not solve the problem take it to a mechanic to see if he can diagnose it.

I can help you if you wish.

that is your o2 sensor near the exhaust manifold rear of engine!!!
hope this helps

The only place you are going to find those parts is at the dealer or a salvage yard. The dealer may even be able to get just the clip, but sometimes (especially with Mazda) you will have to buy the complete door latch assembly.

buy new spark plug and replace it all first.

Is it possible also that the plugs are not seating properly inthe head If the threads in the cylinder head are damaged they shouldbe rethreaded with an appropriate tap, it's possible that the affected sparkplugs are not seating in all the way into the head because of thread damage andthen work their way loose, a properly tightened and seated spark plug will notunseat or loosen, if the threads are ok, make sure all spark plugs seat all theway and compress the sealing gasket, you can torque them to about 16ft/lbs.
hope it will helpful

the catalytic converter might be disabled due to a problem with ignition coils. They most likely need to be replaced. Here is a site (click link) with people describing similar problems, including the hesitation/miss/skip followed by the engine running roughly and cat problems. Engine coils are the most likely culprit, common with your vehicle unfortunately

Can fix it by taking the car to mazda automobile shop for fixing

You might access the Engine Control Module (ECM) using diagnostic equipment connected to the data link connector of the car, in order to pull out all Diagnostic Trouble Codes (DTC) memored. Also through "parameters measurements" menu check the upstream & downstream oxygen sensors voltage values - for bank1 & bank2 of V6 engine. For upstream oxygen sensors you should have a permanent fluctuation of voltage between 0,1 Volts and 0,9 Volts. For downstream oxygen sensors you should have a constant voltage value around 0,4 Volts. I suspect bad upstream oxygen sensor(s), but obligatory scan first the ECM memory and check oxygen sensors voltage!

It could be something as small Such as plugged fuel Injectors. Run a bottle of fuel injector cleaner (I use Lucas Fuel Treatment) Through the system and fill your tank with a higher grade gas and it should improve... I’m happy to assist further over the phone at https://www.6ya.com/expert/cameron_6665f74c5d46fc23

copper part with spring around it goes inside the engine. Is that what you wanted to know?

No. If the transmission is blown you wont be able to drive the vehicle.

Dont take the nut loose,the rotor should come off. If not it may be rusted to the hub. You may need to pry it off, I would not pound on it with a hammer unless you are going to replace the rotor anyhow.

Yes it does, if you hook that back up you should be back to having a nice bright light. That is one of the first things that I check before replacing a headlight is making sure the ground is still installed.

as all 3 are on the same circuit it is possible that the bulbs have blown......

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Follow the upper radiator hose to the engine thermostat inside that house. Make sure dot on thermostat shown above is the correct way.

Regards, Lee Davidian

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