Why does my fronbt O2 sensor come up p0031?
Hi, the P0031 code came up a while ago, I measured the fronbt O2 sensor and it was faulty. I changed it but my P0031 code comes back when I cleared the codes.
What does the code p0031 on Subaru mean?
P0031 SUBARU Tech Notes. The code means that there is a problem with the heater element circuit of the heated oxygen sensor. Water getting inside the heated oxygen sensor connector can caused the heated oxygen sensor fuse to blow, which is a very common problem for this type codes.
What was the code thrown on my Subaru Outback?
I checked out the existing wires and found nothing awry, even cleaned up the ground wire between the manifold cover and the fender. Since P0031 was the only code thrown, I figured the heater in the O2 sensor was toast. I ordered a new Denso sensor from Rock Auto (no connection) for a great price, and expect it to be here before w/e.
What does the code p0043 on an oxygen sensor mean?
Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. The code means that there is a problem with the heater element circuit of the heated oxygen sensor.
What does the ho2s code p0031 mean?
P0031 is the code for HO2S Heater Control Circuit Low (Bank 1 Sensor 1) What the P0031 code means P0031 code means for the engine to run correctly, the engine exhaust must have a specific air-fuel ratio of 14.7 to 1 as signaled by the heated oxygen sensors (HO2S) which detect the oxygen content of the vehicle exhaust.
What does the p0031 code on a Toyota heater mean?
The sensor is less effective when the exhaust gas temperature is low, so it includes a heater which is activated to help get better readings from the A/F O2 sensor. Essentially this P0031 Toyota code means that the resistance of the heater circuit is lower than normal.
How to fix a p0031 heater control circuit low bank 1 sensor?
To fix a P0031 Toyota DTC code, you’ll need to do a proper diagnosis. To do that, you’ll want to inspect the wiring and connectors leading to the sensor. Also if equipped with a heater relay and fuse, you’ll want to check those as well.