Trouble Diagnoses — Diagnostic Procedure 3 — Unstable Idle (Cont'd)
EF & EC-64flowchartDiagnostic Procedure 3 — Unstable Idle (Cont'd)
1
B (continued from previous page)
2
Check water temperature sensor. Conduct self-diagnosis and "Real-Time Diagnosis" with "DATA MONITOR" showing on display. (Refer to "CONSULT".) (Without CONSULT: Conduct self-diagnosis mode 11. Refer to "Self-Diagnosis".)
N.G.
Check engine temperature sensor and circuit. Refer to "Engine Temperature Sensor" (See page EF&EC-137).
O.K.
3
Check throttle sensor. With "WORK SUPPORT" showing on display, check to ensure "IDLE POSITION" for throttle sensor is "ON". Check to ensure throttle sensor output is approximately 0.5 volts during idle.
N.G.
Check fast idle cam. Check throttle linkage and throttle valve. Check throttle sensor. Refer to "Throttle Sensor" (See page EF&EC-143).
O.K.
4
Check AAC valve. Check to ensure idle speed decreases when throttle sensor connector is removed.
N.G.
Check idle rpm control system.
O.K.
5
C (continues to next page)