Po141 Code The Ultimate Guide to Troubleshooting and Repair

I've got a 2021 supra and bought it with an aftermarket downpipe installed. I was able to fix the cat efficiency code, but there is still a P0141 heating ... codes p0141 and p0161 ... Both codes refer to problems with oxygen sensors used by the PCM to control the engine. These codes should have nothing ... Means the heater circuit for the downstream O2 sensor has a problem. It's located aft of the cat converter under the middle of the van. More ... The rear O2 sensor is protected by 2 fuses. Usually it's the lower amperage fuse that is either missing or blown. The lower amperage fuse is ... I read the code and found it out to be P0141 which relates to the O2 sensor heat circuit malfunction. I reset it twice, and the same code came back. 99' Forester Check engine light code P0141, Bank 1 sensor 2. My understanding of the printout indicates that it would be the first one down from the cylinder ... P0171 means the pre O2 sensor is reading a lean condition.....low fuel pressure, a vac leak, an exhaust leak, etc. P0141 means the post O2 sensor is taking too ... Replaced O2 sensor with the Bosch ( probably should have used AC Delco ) and still getting 2 codes on the CenTec scanner. If the resistance through the "universal" O2 sensors are not the same as specified in the FSM, then they are probably going to give you a ... P0141 indicates a problem with the secondary O2 sensor heater element not the cat. Did you replace the primary or secondary O2 sensor? Trending ...