Also the "lieblweb" how-to link has no real visual reference, since the photos are blown out and tiny.
Anyway, here we go!
All work was performed on a 2000 Toyota Tacoma SR5 Automatic V6, NON-CA model.
- Denso Oxygen Sensor (with gasket), Part #234-4162
- 12MM Line Wrench
- Anti-Seize lubricant
- Wire Brush (if area is rusty)
- Vehicle Lift
- Good lighting
- Beverage of your choosing
- Note: The type of transmission, drivetrain, and Emission type will change the part number for your O2 sensor.
- Also note: OEM sensors are DENSO. Many folks have put in Bosch or "universal" only to have them fail a few thousand miles down the road.
- Also Also Note: Line wrenches are a life saver, because more than likely the nuts holding your sensor in place are fairly rusty and corroded, and a normal wrench has a higher propensity to strip them smooth.
Down to brass tax:
I figured this would give a clearer picture, of "where exactly" the 2 Oxygen sensors are.
Step 1: Unscrew the 2 nuts retaining the bad sensor.
Step 2: Unclip harness. Use a screwdriver to pry the retaining tab off of the hook
Step 3: Remove new O2 Sensor from box
Step 4: Clean the area
Step 5: Put sensor in, and apply anti-seize lube to bolts
Step 6: Tighten nuts back on, and tighten the sensor *firm* but not to hard. Its not pressurized like a spark plug, so it doesnt need to be torqued down. Just tight with a quarter turn for peace of mind
Step 7: Plug in connector
Step 8: Wipe up the area, clean your hands, and enjoy a beverage