In a 1997 Lexus LS400, there are typically four O2 sensors located in the exhaust system. Two are positioned upstream (pre-catalytic converter) and two downstream (post-catalytic converter) of the catalytic converters. The upstream sensors monitor the air-fuel mixture, while the downstream sensors check the efficiency of the catalytic converters. Accessing them usually requires lifting the vehicle for better visibility and reach.
There is a total of 3 O2 sensors 2 Upstream and 1 Downstram
The 1999 Lexus GS 300 is equipped with a total of four oxygen (O2) sensors. There are two upstream (pre-catalytic converter) sensors and two downstream (post-catalytic converter) sensors. These sensors monitor the exhaust gases to ensure optimal engine performance and emissions control.
All O2 sensors are threaded into the exhaust system at varoius points.
4
4
YesYes
Under the intake manifold.
they have 2 o2 sensors on the muffler ELIA
Where is the O2 sensor on 1997 Chevy Monte Carlo 3.1 litter with 8th digit vin M
2
o2 sensors are located on the muffler located in the back there are 2 o2 sensors each costing about $70 each at your local auto zone hope this helps ELIA
To replace the O2 sensors on a 1997 Infiniti I30, first ensure the engine is off and cool. Locate the O2 sensors, which are typically found in the exhaust system—one before the catalytic converter and one after. Disconnect the electrical connectors and use a wrench or O2 sensor socket to remove the old sensors. Install the new sensors by threading them in, reconnecting the electrical plugs, and ensuring they are secure.