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ENGINE CONTROL (2VZ–FE)
3. DIAGNOSIS SYSTEM
WITH THE DIAGNOSIS SYSTEM, WHEN THERE IS A MALFUNCTIONING IN THE ECU SIGNAL SYSTEM, THE MALFUNCTION SYSTEM IS
RECORDED IN THE MEMORY. THE MALFUNCTIONING SYSTEM CAN THEN BE FOUND BY READING THE DISPLAY (CODE) OF THE
CHECK ENGINE WARNING LIGHT.
4. FAIL–SAFE SYSTEM
WHEN A MALFUNCTION OCCURS IN ANY SYSTEM, IF THERE IS A POSSIBILITY OF ENGINE TROUBLE BEING CAUSED BY
CONTINUED CONTROL BASED ON THE SIGNALS FROM THAT SYSTEM, THE FAIL–SAFE SYSTEM EITHER CONTROLS THE SYSTEM
BY USING DATA (STANDARD VALUES) RECORDED IN THE ECU MEMORY OR ELSE STOPS THE ENGINE.
(C) (D) (E) (F) (G) (H) INJECTOR
1–2 : APPROX. 13.8 W
(I)
NEUTRAL START SW (A/T)
2–3 : CLOSED WITH A/T SHIFT LEVER IN P OR N POSITION
EFI MAIN RELAY
4–2 : CLOSED WITH IGNITION SW AT ON OR ST POSITION
(J)
CIRCUIT OPENING RELAY
2–1 : CLOSED WITH STARTER RUNNING OR MEASURING PLATE (AIR FLOW METER) OPEN
(T)
AIR FLOW METER
2–1: CLOSED WITH STARTER RUNNING OR MEASURING PLATE OPEN
5–6: 200–600 W (MEASURING PLATE FULLY CLOSED)
20–1200 W (MEASURING PLATE FULLY OPEN)
5–4: 200–400 W
5–7: 10–20 KW (–20°C, –4°F)
4–7 KW (0°C, 32°F)
2–3 KW (20°C, 68°F)
0.9–1.3 KW (40°C, 104°F)
0.4–0.7 KW (60°C, 140°F)
(U) EFI WATER TEMP. SENSOR
2–1 : 10–20 KW (–20°C, –4°F)
4–7 KW (0
°C, 32°F)
2–3 KW (20
°C, 68°F)
0.9–1.3 KW (40
°C, 104°F)
0.4–0.7 KW (60
°C, 140°F)
0.2–0.4 KW (80
°C, 176°F)
(Y) THROTTLE POSITION SENSOR
2–4 : 0.3–6.3 KW WITH CLEARANCE BETWEEN LEVER AND STOP SCREW 0 MM (0 IN.)
3–4 : LESS THAN 2.3 KW WITH CLERANCE BETWEEN LEVER AND STOP SCREW 0.30 MM (0.0118 IN.)
Ω WITH CLEARANCE BETWEEN LEVER AND STOP SCREW 0.70 MM (0.0276 IN.)
2–4 : 3.5–10.3 KW WITH THROTTLE VALVE FULYY OPEN
1–4 : 4.25–8.25 KW
(Z)
EGR GAS TEMP. SENSOR
1–2 : 69.40–88.50 KW (50°C, 122°F)
11.89–14.37 KW (100
°C, 212°F)
2.79–3.59 KW (150
°C, 302°F)
(c)
OXYGEN SENSOR
1–2 : APPROX. 5.1–6.3 W
SERVICE HINTS