Warm up the engine sufficiently and monitor the current data.
■ Reference current data
☞ If current data is high(rich) and is not "feed back" state, there is a problem with the intake/exhaust system.
☞ If current data is low (lean) and is not "feed back" state, there is a problem with the fuel pressure.
This current data is nothing but an example at certain condition. Thus, the real current data could be different from this example.
If HO2S current data is low continously(Lean), click on "Fuel supply state" item for more details.
If HO2S current data is high continuously (Rich) and intake air is decreased and MAPS current data is lowered, click on "PCSV" item for more details.
If HO2S current data is high continuously (Rich) and exhaust gas is too small and MAPS current data is lowered, click on "Catalytic converter" item for more details.
If HO2S current data is high continuously (Rich) excessive exhaust gas and click on "Vacuum leakage" item for more details.
