Caution:When replacing the HO2S perform the following:
A code clear with a scan tool, regardless of whether or not aDTC is setHO2S heater resistance learn reset with a scan tool, whereavailablePerform the above in order to reset the HO2S resistancelearned value and avoid possible HO2S failure.
Special Tools (Diagnostic Tools) Engine Control
IllustrationTool Number/DescriptionCH-34730-2CJ-34730-2CInjector Test LampCH-38641-BJ-38641-BDiesel Fuel Quality TesterCH-39021-301J-39021-301Fuel Injector Harness AdapterCH-39021-460J-39021-460Fuel Injector Test AdapterCH-41415-30GE-41415-30J-41415-30Fuel Tank Cap AdapterCH-42960-2J-42960-2Fuel Fla ...