The biggest indicator of a faulty oxygen sensor is a noticeable decrease in fuel economy, along with a rich mixture. Now, this does not automatically indicate that the sensor has failed. Be sure to check all vacuum hoses for leaks as well as the ignition system, check the plugs, (are they fouled?) check the rotor, distributor cap, points, spark plug leads, and condenser (check all of these where applicable) Vacuum leaks and ignition problems are notorious for causing fuel economy problems. It's a good idea to inspect and re-new the vacuum hoses every couple of years anyway. Other symptoms of a faulty sensor are a loss of power, (particularly when accelerating from a stand-still), overheating, and spark plug fouling, both of these are due to an increased rich or lean running condition.
Location of sensor
The 2001 Toyota Tundra front oxygen sensor torque specification is 20 pounds. The oxygen sensor bolts should be torqued in 10 pound intervals.
it shold be on the front or back of headers
There are four oxygen sensor in a Maxima 2001. See Nissanhelp.com for a diagram location.
The oxygen sensor is mounted in the exhaust down-pipe
how do you replace oxygen sensor of 2001 bmw 318 ci es
on the exhaust manifold.
in front of the converter
That is the oxygen sensor screwed into the downstream side of the catalytic converter.That is the oxygen sensor screwed into the downstream side of the catalytic converter.
That would be the sensor after the catalytic converter.
It would be the sensor after the catalytic converter.
in the exhaust pipe