1989-Mitsu-Factory Manual · fuel system · страница 12 из 53 · Открыть оригинал PDF ↗
inspection Conditions
l Engine coolant temperature: 85 - 95°C (185 - 295°F)
8 Light and accessory operation : off
e Transmission : neutral
l Steering wheel : center position (power steering equipped
vehicles)
(7) Prepare a timing light and tachometer.
(8) Depress accelerator pedal once to release the fast idle.
(9) Check the cycle of the timing light. Adjust if necessary.
Timing fight cycle : PBTDC + 2”
NOTE
Refer to GROUP 8 - Ignition System, for the timing cycle
inspection and adjustment procedures.
(10)Turn off the ignition key.
(11)Disconnect the cable from the negative terminal of the
battery for about 5 seconds. And then reconnect the cable
to the original terminal.
(12)Disconnect the connector of the exhaust oxygen sensor.
(13)Run the engine for more than 5 seconds at the engine
speed of 2,000 to 3,000 rpm.
(14)Run ghe engine at idle for 2 minutes.
(15)Set the CO-HC tester.
(16)Set the idle CO and the engine speed to the specified
value by adjusting the idle speed adjusting screw No. 1
and the idle mixture adjusting screw.
ldleC0 : 0.1 to 0.3% at nominal curb idle speed
Curb idle speed :
Cl725 + 158 / *z800 f 180 rpm
- 100 rpm
NOTE
1. *I: For the first 500 -km (300 miles)
2. *2: After 500 km (300 miles)
3. If the idle CO adjustment fails, suction of secondary air
is likely. Plug the secondary air hose and try again.
Caution
DO NOT TOUCH the idle speed adjusting screw No. 2.
The idle speed adjusting screw No. 2 is the preset
screw that determines the relationship between the
throttle valve and free lever, and has been accurately
set at the factory. If this setting is disturbed, throttle
opener adjustment and dash pot adjustment cannot be
done accurately.
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