Unlock Your Vehicle's True Potential Conquer P0030

Here are all the codes, all of which are for the upstream (front) sensors. He said he disabled the downstream (back) ones. This indicated faulty heater control circuit for upstream O2 sensor. Do the sensors have a tendency to go or it it usually in the wiring? the error's are saying both of them are having issues. i would start checking the Accessory hardness that exits the cowl by the passenger side ... I scanned and received a P0030 VOLKSWAGEN Code - HO2S Heater Control Circuit Bank 1 Sensor 1. No but I'm wondering if I. Claim your FREE engine code eraser https://free.nonda.co ============================= nonda Auto DIY Center is the biggest Auto DIY ... The code means that there is a problem with the heater element circuit of the heated oxygen sensor. Water getting inside the heated oxygen ... The best thing to do would probably be to try replacing the O2 sensor and see if that eliminates the check engine light. Folks, I managed to replace the pre-cat O2 sensors today without much trouble. However, after the replacement, I seem to be getting the MIL ... I found out why I was getting the errors, the manifold was replaced and the O2 sensor wire where it connects into the wiring harness was not ... P0030? help!!!! ... Bank 1 is the passenger side front sensor. It is the before the cat sensor. ... How hard to replace front sensors on 1999 S60 T6 ...