Question about 2001 Mazda Tribute
Front bank/or it can be a intake or exhaust leak
Posted on Nov 22, 2013
Testimonial: "Thank you for the reply it has helped a lot...If there is a problem with the intake would both the sensors be flagged up by the ecu/pcm? or do the intake pipes run independently on each bank? ...Also, if there is a leak in the exhaust, is it as simple as asking someone to put their hand over the end of the exhaust so i can hear any leaks around that bank,or will it need special tests? hope that makes sense...Thanks once again."
I know one thing for sure...
A lot of OXYGEN SENSORS get replaced for NOTHING...
and the NEW ONES report the very same issues ...
I would suggest you check your catalytic converters
and mufflers ... (blocked exhaust)
They will strangle a motor... very effectively and
many OXYGEN sensors have been needlessly
sacrificed along the way...
I'm just saying...
Carnac the Magnificent
Posted on Aug 16, 2017
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Posted on Jan 02, 2017
This code does not always mean the O2 sensor is low, but if u want to replace it here is the info to do that and the part number.
The sensor you want is the one in the exhaust pipe of the engine cylinder bank that has #1 cylinder in it, as you face the engine with the hood open the cylinder bank u want is the rear bank, u will need to jack the car up and get under it to remove the sensor, u may also need a special socket to remove it, the sensor is the one that is before the catalytic converter. part number is:DENSO Part # 2344068
REAR; Before Catalyst
Posted on May 20, 2009
bank 1 is the bank of cylinders closest to the firewall. the sensor will be located along the exhuast from that side after the catylitic converter
Posted on Apr 01, 2010
Yes there are 4 sensors, one on each bank of your V6 above the catalytic converter and also a pair below the cats, maybe you should find an independent garage to put the Mazda on their code reader and find out the whole picture, my reader cost $300 and is low end but gives all the info on each O2 sensor (and all other sensors) in real time so I can see how many are going off spec and need changing. Dealerships work to manufacturers reccomendations and guidelines so probably have to change the pair.
Posted on May 02, 2010
SOURCE: Mazda 626 (Capella) ABS fault. I
Oxygen sensor voltage was under 0.25 volts for up to 4 1/2 minutes of closed loop operation, lean exhaust. Check the ECM wiring connections. Check for vacuum leaks at the hoses and intake manifold gasket.
Misfire Diagnosis. Check the ignition and fuel systems.
Posted on Jan 31, 2011
bank one upstream oxygen sensor on exhaust manifold bank two oxygen sensor after catalytic converter.tell me what code you are getting.bank 1 sensor 1 fuel system is too rich fuel pressure too high fuel pressure regulator leaking or more than 1 fuel injector leaking. fuel contaminated.check spark plugs if black carbon color fuel system too rich. if you getting code bank 1 sensor 2 check for air leaks in the exhaust system, air leaks intake manifold.look for vacuum lines leaks,look for vacuum leaks pcv valve and hose and make egr valve not stuck open or gasket leak.
Posted on Apr 15, 2011
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