Diagnostic Procedure 21 — Afterburning (Cont'd)
EF & EC-126flowchartTROUBLE DIAGNOSES
Diagnostic Procedure 21 — Afterburning (Cont'd)
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A (continued from previous page)
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5. Check throttle sensor. With CONSULT: • Conduct self-diagnosis and "Real Time Diagnosis" with "DATA MONITOR" showing on display. (Refer to "CONSULT".) Without CONSULT: • Conduct self-diagnosis Mode II. (Refer to "Self-Diagnosis".)
N.G.
Check throttle sensor and circuit. Refer to "Throttle Sensor". (See page EF&EC-143)
O.K.
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Check air flow meter. • Check for operation. Refer to "Air Flow Meter". (See page EF&EC-134)
N.G.
Repair or replace.
O.K.
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6. Check A.A.C. valve. With CONSULT: • Start engine. • Conduct "A.A.C. valve" test with "FUNCTION TEST" showing on display. • Check to ensure control duty ratio is in the 80 - 20% range and engine speed changes at least 150 rpm or proceed as follows: • Start engine. • Select "A.A.C. Valve Position" with "ACTIVE TEST" showing on display. • Touch "Qu" and "Qd" to ensure engine speed changes with A.A.C. valve position (in percentage). Without CONSULT: • Start engine. • Check to ensure engine speed decreases when A.A.C. valve connector is removed.
N.G.
Check A.A.C. valve and circuit. Refer to "A.A.C. Valve". (See page EF&EC-158)
O.K.
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7. Check engine temperature sensor. With CONSULT: • Conduct self-diagnosis and "Real-Time Diagnosis" with "DATA MONITOR" showing on display. (Refer to "CONSULT".) Without CONSULT: • Conduct self-diagnosis mode II. (Refer to "Self-Diagnosis".)
N.G.
Check engine temperature sensor and circuit. Refer to "Engine Temperature Sensor". (See page EF&EC-137)
O.K.
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B (continues to next page)
See also
EF & EC-143Diagnostic Procedure 27 - THROTTLE SENSOR (Code No. 43)EF & EC-134Diagnostic Procedure 24 — Air Flow Meter (Code No. 12)EF & EC-158Diagnostic Procedure 33 — A.A.C. VALVE (Not self-diagnostic item)EF & EC-137TROUBLE DIAGNOSES — Diagnostic Procedure 25: ENGINE TEMPERATURE SENSOR (Code No. 13)