Question about 2005 Nissan Quest
Four digit codes are model specific. Code 1273 for Nissan products is for a problem with the O2 sensor - bank one sensor one.
That sensor is before the catalytic converter on the side with cylinder one. The sensor and circuit to the computer would need to be tested.
Posted on May 04, 2013
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Posted on Jan 02, 2017
SOURCE: what is a 1273 code on a nisian
Hello! This code is caused by;An intake leak after the MAP sensor, low fuel pressure, or rear (downstream) O2 sensor.
Lets take them one at a time. The MAP is located between the intake and the air filter box. Check to see if there are splits or holes in the hose facing the intake. The low fuel pressure I would place on the back burner. The last and 90%of the time the culprit is the rear O2 sensor. Before spending $; Look the intake over for any cut or open hoses. Buy a spray can of ether and with engine running, spray (upwind) around all hoses and vacuum lines. if idle speed changes you've found the leak.
Posted on Dec 10, 2009
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