Question about 1997 Nissan Maxima
TRY LOOKING RIGHT UNDER YOUR FIRST CATALYTIC CONVERTER WHICH IS RIGHT UNDER YOUR EXHAUST MANIFOLD
Posted on Jun 19, 2009
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Posted on Jan 02, 2017
SOURCE: O2 sensor and EVAP issues
P0446 is Aux Emission Control
P0132 Fuel Air Metering
The Evap Canister is located in the fender well, if I am not mistaken and the B1S2 is the O2 sensor is the second O2 sensor on the left side of the engine if your looking at it from the front of the motor.
Posted on Aug 23, 2008
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
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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Fig. Fig. 3: Oxygen sensor-4.3L engines
Fig. Fig. 4: Oxygen sensor-5.0L and 5.7L engines
Fig. Fig. 5: Oxygen sensor-7.4L engines
Oxygen sensors are always numbered like this:
Bank 1 sensor 1
Bank 2 sensor 1
Bank 1 sensor 2
Bank 2 sensor 2
Some manufacturers use a kind of shorthand that reads different, but means the same thing:
Sensor 1/1 or O2s 1/1
Sensor 2/1 or O2s 2/1
Sensor 1/2 or O2s 1/2
Sensor 2/2 or O2s 2/2
Bank 1 is always the side of the engine where cylinder number 1 is located and, of coarse, Bank 2 is the opposite side.
On a 4 cylinder engine, there is only 1 bank and it is always referred to as Bank 1.
Sensor 1 is always the upstream sensor (the one located BEFORE the catalytic converter)
Sensor 2 is always the downstream sensor (the one that is located AFTER the catalytic converter.
Hope helps (remember to rate this).
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