Diagnostic Procedure 13 — Engine stalls during rapid acceleration
EF & EC-93flowchartTROUBLE DIAGNOSES
Diagnostic Procedure 13 — Engine stalls during rapid acceleration
1
Check AAC valve. CONSULT method: Start engine. Conduct "AAC 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 "AAC Valve Position" with "ACTIVE TEST" showing on display. Touch "Qu" and "Qd" to ensure engine speed changes with AAC valve position (in percentage). No-tool method: Start engine. Check to ensure engine speed decreases when AAC 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.
2
Check throttle sensor. CONSULT method: Conduct self-diagnosis and "Real Time Diagnosis" with "DATA MONITOR" showing on display. (Refer to "CONSULT".) No-tool method: 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.
3
Check air flow meter. Check for operation. (Refer to "Air Flow Meter". (See page EF&EC-134).
N.G.
Repair or replace.
O.K.
4
Check ignition system. Check for operation. Refer to "Ignition Signal". (See page EF&EC-140).
N.G.
same as step 3
O.K.
5
A (continues to next page)