OEM Chevrolet Prizm Oxygen Sensor

Chevrolet Prizm Oxygen Sensor Parts and Q&A

• Oxygen Sensor
  94859217
  Q: How to replace the Heated Oxygen Sensor (HO2S) 2 on Chevrolet Prizm?

  A:

  Engine temperature must be below 48 when changing the heated Oxygen Sensor (HO2S) 2 because removal becomes difficult at and beyond 120 °f. The first step requires removal of the front floor console and subsequent passenger carpet removal from the console floor region. Start by disconnecting the ho2s 2 electrical connector then extract the wiring from its position under the floor heat duct. Lower the vehicle automatically and position it on a hoist. Then disconnect the wiring and body plug from the Floor Pan. Remove the ho2s 2 from the Exhaust Pipe by following steps which safeguard the threaded section from damage. The new ho2s 2 arrives with pre-applied anti-seize coating so discard the safety instructions regarding its removal before installing. Fasten the ho2s 2 into place on the Exhaust Pipe using 44 n.m torque pressure (32 lb ft). Reattach the wiring and body plug to the Floor Pan while lowering the vehicle before running the ho2s wires under the heater floor duct to complete the connection of the ho2s 2 electrical connector . Last step involves putting back the carpet covering which spans the console area and front floor console.
• Oxygen Sensor
  94859766
  Q: How to service and repair the Oxygen Sensor 2 on Chevrolet Prizm?

  A:

  Customers need to start Oxygen Sensor 2 service and repair by taking out the front floor console while drawing back carpet on the passenger side near the console floor. The ho2s 2 electrical connector must first be detached before uninstalling the ho2s wiring below the floor heat duct. First raise and properly secure the vehicle afterward remove the wiring along with the body plug from the Floor Pan. The service technician should next extract ho2s 2 from the exhaust tailpipe according to safety protocols to prevent Exhaust Pipe thread wear when temperatures reach above 48°c (120°F). The new ho2s 2 must have its anti-seize coating intact before you install it into the Exhaust Pipe with a torque of 44 n.m (32 lb ft). First lower the vehicle and fit the Floor Pan wiring and body plug followed by passing the ho2s wiring under the heater floor duct. Then reconnect the ho2s 2 electrical connector to its place. Reposition the passenger side carpet to cover the console region and replace the front floor console as the last step.