Diagnostic Procedure 13 — Engine stalls during rapid acceleration (Cont'd)
EF & EC-94flowchartTROUBLE DIAGNOSES
Diagnostic Procedure 13 — Engine stalls during rapid acceleration (Cont'd)
1
A (from previous page)
2
Check spark gaps. Turn ignition switch "OFF". Remove spark plugs. Install new or good spark plugs. While moving rear end of each spark plug close to grounding point, crank engine. Check for sparks.
N.G.
Check ignition coil, power transistor and related circuits. Refer to "Ignition Signal". (See page EF&EC-140).
O.K.
3
Check spark plugs. Remove spark plugs from engine and check for contaminants, damage and proper spark gaps.
N.G.
Repair or replace.
O.K.
4
Check exhaust gas sensor. CONSULT method: Run engine at approximately 2,000 rpm after warm-up. Conduct "MIXTURE RATIO" test with "FUNCTION TEST" showing on display or proceed as follows: Select "EXH GAS SEN" with "DATA MONITOR" showing on display. Run engine at 2,000 rpm under no load after warm-up. Check to ensure display alternately shows "LEAN" and "RICH" at least 5 times within 10 seconds. RICH→LEAN→RICH→LEAN→ RICH... (← 1 time →) (← 2 times →). No-tool method: Set body-side diagnostic connector (inside fuse box) in "Exhaust gas sensor monitor" mode. (Refer to "Self-Diagnosis".) Run engine at 2,000 rpm under no load after warm-up. Check to ensure RED L.E.D. on E.C.U. flashes at least 5 times within 10 seconds.
N.G.
Replace exhaust gas sensor.
O.K.
5
B (continues to next page)