stevencox93
First Fill-Up (of many)
- Location
- Tazewell,Tn
Okay so I got this code today. Heated o2 sensor? What does this mean?
P1143?
- Thread starter stevencox93
- Start date
What the 1143 is saying is that the O2 Sensor 1 (Bank 1 in this case, 1163 is B2) is not reading right. When the sensor comes on line, the computer expects the readings to bounce between two voltages, about 0.3v - 0.6v. That's a narrow range, and if the sensor doesn't hit both of those, then this code is set. Usually, you need a new sensor, but it can also be caused by a bad ground on top of the intake, missing ground from the body to the exhaust, or even intake leaks.
Check the ground on top, run a wire to the exhaust if one is missing, then shotgun the sensor. This sensor is pretty easy to get to, at least.
Check the ground on top, run a wire to the exhaust if one is missing, then shotgun the sensor. This sensor is pretty easy to get to, at least.
stevencox93
First Fill-Up (of many)
- Location
- Tazewell,Tn
Yeah the sensor is brand new replaced by Nissan I'm April. Also that same sensor in July had a high voltage code for it then it went away and came back again 4 weeks later and Nissan said nothing was wrong with it so I have no idea what to do lol I'm ready to shoot every O2 sensor lol