DTC 0114

ON BOARD DIAGNOSIS LOGIC
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from the front heated oxygen sensors. The ECM calculates the necessary compensation to correct the offset between the actual and the theoretical ratios. In case the amount of the compensation value is extremely large (The actual mixture ratio is too rich.), the ECM judges the condition as the fuel injection system malfunction and light up the MIL (2 trip detection logic).



DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE

NOTE: If "DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch "OFF" and wait at least 5 seconds before conducting the next test.


Without TOOLS
(1) Start engine and warm it up to normal operating temperature.
(2) Turn ignition switch "OFF" and wait at least 5 seconds.
(3) Disconnect mass air flow sensor harness connector.
(4) Then restart engine and run it for at least 3 seconds at idle speed.
(5) Stop engine and reconnect mass air flow sensor harness connector.
(6) Turn ignition switch "ON".
(7) Perform "Diagnostic Test Mode II (Self-diagnostic results)" with ECM. Make sure DTC 0102 is detected.
(8) Erase the DTC 0102 by changing from Diagnostic Test Mode II to Diagnostic Test Mode I.
(9) Perform "Diagnostic Test Mode II (Self-diagnostic results)" with ECM. Make sure DTC 0505 is detected.
(10) Start engine again and run it for at least 10 minutes at idle speed.
The DTC 0114, 0209 should be detected at this stage, if a malfunction exists.

(11) If it is difficult to start engine at step 10, the fuel injection system also has a malfunction.
(12) Crank engine while depressing accelerator pedal. If engine starts, go to "DIAGNOSTIC PROCEDURE". If engine does not start, remove ignition plugs and check for fouling, etc.


RIGHT BANK




Electrical Diagrams






Circuit Connectors

LEFT BANK




Electrical Diagrams






Circuit Connectors

1 Of 2:

2 Of 2:

DIAGNOSTIC PROCEDURE