Unveiling the Mystery of the P0030 Code Diagnostics and Solutions

B6 Models - Fault code: P0030 HO2 Bank 1 Sen 1 Heater Circuit, Exaplain please... - I got the car scanned today and this code showed up, ... Car seems to drive normally / no limp mode / reduced power. Initial codes found: P0030 - HO2S Heater Control Circuit Bank 1 Sensor 1 P0050 - HO2S Heater ... This error indicates that it is not reaching temperature (the sensor, not the engine) , which is usually a failure of the O2 sensor. From what I found the pre heater in the o2 sensor is no longer working . So replace it should be good . Also I would check the wiring to make ... That fault code is an O2 sensor fault , the om642 engine eats them regularly. The fault of the light staying on will be a glow plug out or glow plug relay ... The code I pulled was P0030 which is listed as: HO2S Heater Control Circuit, B1S1. The reference to B1S1 makes me think it is related to the fore Sensor. The NOx sensor is somewhere at the bottom? The P0030-29 code came up today. I don't remember the code for NOx but the description was something ... The check engine light came on the other day and I'm throwing a code of P0030 which is Bank 1 Sensor 1 (driver's side upstream pre-cat) O2 ... Code P0030 means there's a problem with the heater element circuit in Bank 1 Sensor 1. Our expert mechanics can help resolve this issue. Hey all, I have a 2015 ED and recently my check engine light came on. The code is P0030 Bank 1 Sensor 1 O2 sensor.