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You are watching: 1998 gmc sierra o2 sensor location


Please assist me with my 1998 Chevy Tahoe 5.7L 4x4. This spring my check engine light came on, I brought it come Autozone and they scanned it v their OBD2 auto reader and it revealed code P0161, O2 sensor heater circuit breakdown (bank 2 sensor 2). Ns purchased the O2 sensor, yet then read online that they can be very an overwhelming to remove if they have been in for a lengthy time. I determined to lug it to a garage and have them do it because that me. A couple of days later on the irradiate came back on. Same code P0161.I carried it back to the garage and explained that the light had actually come back on and was revealing the very same code. They inspected and discovered that they had actually installed the sensor I lugged to them at location financial institution 1 sensor 2, not financial institution 2 sensor 2. I paid them because that a new sensor and also labor to download one in ~ location bank 2 sensor 2. Difficulty seemed to be solved and also light did not return.Fast front 3 months. After having some transmission job-related done critical week the check engine light returned. Very same code, P0161. Ns figured maybe they had actually tugged on part wires on other while functioning on the transmission, therefore I carried it back to the garage the did the O2 sensors because that me and explained ns thought probably a cable had end up being disconnected when the infection shop to be working roughly it. They experiment the relationships to both financial institution 1 sensor 2 and also Bank 2 sensor 2. Every little thing seemed come test out fine, for this reason they ended up swapping the 2 sensors. Us were do the efforts to identify if the examine engine light would follow the sensor. This method if the irradiate came back on and also said P0161 we would know that it have to be in the connection from the car"s computer to the cable harness for the financial institution 2 sensor 2 sensor. And if the irradiate returned and revealed the code for financial institution 1 sensor 2 us would recognize it to be the sensor itself. Well today the irradiate returned and also revealed code P0141 O2 sensor heater circuit breakdown (Bank 1 sensor 2). The code seems to have complied with the O2 senor"s readjust of location. I want to replace this sensor, right? I"m exhausted of bringing my auto into the garage, and have spent virtually $600 make the efforts to get this dang inspect engine light off. I am i was sure I deserve to swap the sensor myself this time. Autozone will change the original sensor ns purchased indigenous them in April, and has one O2 sensor wrench I deserve to borrow. I"m not so worried about the sensor gift seized in there since it has actually been out currently twice in the critical 3 months.My question, wherein is the place of financial institution 1 sensor 2? I think it is behind the Cat, but have heard conflicting info regarding weather that is top top the drivers side or passengers side. Anybody understand for certain.Sorry this to be so long.

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