00:00If your Nissan is showing code P1273, it means the air-fuel ratio sensor is detecting a lean condition.
00:08In simple words, your engine is getting too much air or not enough fuel.
00:13Common causes, a vacuum leak, a faulty air-fuel ratio sensor, bad fuel injector, or even a dirty MAF sensor.
00:22To fix it, first check for air leaks around the intake hose, then clean or test the MAF sensor, and finally inspect or replace the MAF sensor if needed.
00:33Ignoring this code can hurt your fuel economy and damage your catalytic converter, so fix it early.
Comments