Spectra5 L4-2.0L (2005)
4.
Measure the resistances between the terminals of the male connector of front oxygen sensor at room temperature (70°F) and record them on the
check sheet.
Normal resistance range
5.
Measure the voltage between terminals 5 and 6 of the harness side of front oxygen sensor with the vehicle running and record it on the check sheet.
Normal voltage range: 12-14.5V (Voltage may fluctuate until warm)
6.
Check for leaks in the exhaust manifold oxygen sensor fittings exhaust front pipe or catalytic converter and record results on the check sheet. If
there is any gas leak repair the exhaust system and recheck the gas leak.
NOTICE:
If a vehicle returns (check repair history) with DTCs P0030, P0031 or P00323 after the inspection listed above, proceed with the front oxygen
sensor and PCM terminal replacement procedure shown below.
REPLACEMENT OF FRONT OXYGEN SENSOR AND PCM TERMINALS
1.
Record preset radio stations and disconnect the battery negative cable.
2.
Remove the engine cover.
3.
Disconnect the front oxygen sensor connector.
4.
Remove the front oxygen sensor female connector and bracket.
