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What fuse # do you check when you get a o2 sensor code on a 2001 Mazda Protege, Before I change the o2 sensors they say to check the fuse first

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

thutson66
  • 96 Answers

SOURCE: 2001 mazda protege will not start

well, with all that you have changed the only two possible things that are left PCM and the ECM....

Do you have an alarm system on this vehicle? If you purchased this car second hand it may have something that is inhibiting the engine from firing. From what you have told us here that would be where I would start looking.

I really hope this is helpfull

Posted on Aug 10, 2008

ewashmidas
  • 362 Answers

SOURCE: Determine which O2 sensor to replace.

There are many reasons for a PO171 code, these need to be checked before replacing O2's:

  • Vehicle driven low on fuel or until it ran out of fuel
  • One or more injectors restricted or pressure regulator has failed
  • Fuel delivery system supplying too much or too little fuel during cruise or idle periods (e.g., faulty fuel pump, or dirty fuel filter)
  • Air leaks after the MAF sensor, or air leaks in the PCV system
  • Air leaks at the EGR gasket, or at the EGR valve diaphragm
  • Exhaust leaks before or near where the front HO2S is mounted
  • HO2S is contaminated, deteriorated or it has failed
  • Fuel control sensor is out of calibration (i.e., ECT, IAT or MAP)
  • Base engine "mechanical" fault affecting one or more cylinders.
  • Posted on Feb 10, 2009

    juggernautxt
    • 145 Answers

    SOURCE: Code: P0133 - O2 Sensor Circuit Slow Response Bank 1 Sensor 1

    is this a 4 or 6 cylinder?
    if a 4 cylinder it will only have 2 o2 sensors
    V6 will have 4 o2 senors which the sensor will be the right side of the engine first sensor.
    1st sensor on exhaust, I recommend if you change one change all, as this will make the computer when it rechecks the system you have all clean/fast responding sensors.

    if you have a slow response it means the sensor is dirty and not reading well, which is usually caused by minor misfires that the engine computer dismisses, so a tune up would be recommended too.

    Posted on May 06, 2009

    • 1986 Answers

    SOURCE: I have a Mazda 2001 MPV, just had service for o2

    blinking light means engine is misfiring. continuing to drive will severely damage the engine. The O2 should not be related to your engine misfiring

    Posted on Nov 13, 2009

    • 1 Answer

    SOURCE: 2001 mazda protege keeps stalling

    my 2001 mazda protege starts hard, idles low and high at various times (never normal) and it acts as though its going to stall at all times. sparks and wires are changed no help, changed air filter no help. any idea on what to do?

    Posted on Nov 26, 2009

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    1 Answer

    Is there a o2 senser fuse in fuse box if my 97 mazda protege


    Has the sensor 4 wires, if yes it has a fuse. The two white wires are for a heater, use a volt meter, should get 12volts across these wires, black wire is an earth and the grey wire is the sensor. If the heater is not working (fuse blown) it will give that code. I have had this fault on a Seat, changed both sensors (180 pounds), then found a broken wire on the back of the fuse box?????????

    Dec 30, 2013 | Mazda Protege Cars & Trucks

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    Oxygen sensor location in mazda 2001 protege


    The front O2 sensor is located at the bottom of the heat shield just before you get to the exhaust. It has a wire connected to it. You will have access to this from the top of the car.You may need a O2 sensor tool that you can borrow from most major auto parts retailer. Disconnect the battery first then unplug the sensor. Using the O2 socket remove the sensor. The sensor should come with a packet of anti seize, apply it to the threads and install it. Plug the sensor back up and connect the battery and you should be done.

    Apr 20, 2010 | 2001 Mazda Protege

    1 Answer

    1999 Protege, need to reset internal comp.


    there are more then 1 o2 sensor find out if is a upstream or downstream sensor before installing remove the battery cable this will reset the computer

    Mar 03, 2010 | 1999 Mazda Protege

    1 Answer

    Need to replace 2001 Mazda Protege Oxygen Sensor before the catalytic converter... Not sure how to do this or even where it's located. Can anyone tell me how (and where)? Please be as detailed as possible...


    The front O2 sensor is located at the bottom of the heat shield just before you get to the exhaust. It has a wire connected to it. You will have access to this from the top of the car.You may need a O2 sensor tool that you can borrow from most major auto parts retailer. Disconnect the battery first then unplug the sensor. Using the O2 socket remove the sensor. The sensor should come with a packet of anti seize, apply it to the threads and install it. Plug the sensor back up and connect the battery and you should be done. Good luck.

    Nov 01, 2009 | 2001 Mazda Protege

    1 Answer

    Obd2 code p0300 on mazda protege 2002


    Just had one of these with a maxima, the code is multiple random misfire, when a misfire occurs, to start is do the basics, replace the plugs, check fuel pressure, clean throttle body, and coolant is topped up. also I have seen if the O2 sensor is not working correctly is can cause a misfire, you will need a scan tool to look at what the O2 sensor is doing, o rby back probing the sensor (don't damage the O2 sensor wires). If it wires replace them as well, if it has coils they usually dont give that code if one fails, it will pinpoint that a certain coil if one fals.

    Oct 02, 2009 | 2002 Mazda Protege

    2 Answers

    I am getting a P0031, P1512, & P0421 code


    P0031 - most likely pointing to a failed O2 sensor (bank 1 sensor 1 is located before the catalytic converter)

    P0421 - failed catalytic converter or a failed O2 sensor

    P1512 - intake manifold shutter valve is stuck - may be caused by the O2 sensor, but may not

    I recommend replacing your O2 sensor first and see what happens

    Sep 18, 2009 | 2001 Mazda MPV

    1 Answer

    99 Mazda Protege 105000 miles. To change the pre catalytic Oxygen Sensor Is it necessary to take the heat shield off first?


    no you just need an O2 sensor socket you should be able to get one at your local parts house.

    Jul 02, 2009 | 2002 Mazda Protege

    2 Answers

    Engine light on 2002 mazda protege is on even after changing o2


    Try cleaning the Mass Airflow (MAF) Sensor. My 2002 Protege check engine light came on and it started stalling at stoplights if I didn't keep the engine revved a little. Manager at AutoZone checked the computer code for the light (P0171?), and it said it was running lean. He suggested I try the MAF sensor cleaner they have ($6.99) rather than replacing the 02 sensor, etc.; it made a *significant* difference. (I think I need to do it again to get it totally cleaned out, but the can is for at least 4 cleanings.) The MAF sensor is the large component that air goes through right after the air filter. If you don't have the repair manual for the car (search online for PDF's), you search for the part online to see what it looks like. Mainly, it's a tube about 4" across with some small wire things inside. The cleaner can said it was a 10 minute job; mine took 20 minutes, but only because the tube leading from the MAF sensor to whatever is next (a kind of bent elbow tube, with a couple of accordian-style ripples) tore, and I had to duct-tape that up to seal it. (Still haven't gotten that replaced - found them online for ~$40. Maybe this weekend...)

    Apr 01, 2009 | 2002 Mazda Protege

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    Check engine light due to MAP Sensor Mazda 2001 1.6L manual trans


    the map sensor is on the passager side near the shock tower lot of time the plastic pipe that bring vacuum to the sensor break check it out pierre

    Mar 03, 2009 | 2001 Mazda Protege

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