Mitsubishi Eclipse 1990 Service Manual page 492

SENSOR READ TESTS (DATA LIST) REFERENCE TABLE
Caution
1. When shifting the select lever to
does not move forward.
2. When checking while driving the vehicle, always be sure to have two
vehicle.
Inspection
Inspection contents
item
No.
Engine: Warm
Air/fuel mixture
made leaner
when
decelerating, and
is made richer
sensor
when racing.
volts
(Heated
Engine: Warm
oxygen
The heated
sensor
oxygen sensor
front)
signal is used to
check the air/fuel
mixture ratio, and
control condition
is also checked
by the PCM.
Engine
Ignition switch: ON When engine coolant
coolant
or with engine run- temperature is
ning
ture sensor
Throttle
Ignition switch: ON
position
Minimum
Engine: Idle (more than one minute)
throttle
Knock
Engine: Idle
sor volts
Battery
Ignition switch: ON
0
voltage
Ignition switch: ON
1
reading
ENGINE (NON-TURBO)>
range, the brakes should be applied so that the
When at 4000
engine is suddenly
decelerated.
When engine is
suddenly raced.
Engine: Idle
Engine: 2000
When engine coolant
temperature is
When engine coolant
t e m p e r a t u r e i s
When engine coolant
t e m p e r a t u r e i s
When engine coolant
t e m p e r a t u r e i s
Set to idle position.
Open fully
Sudden racing
Altitude: Om (0 ft.)
Altitude:
(3937 ft.)
TSB Revision
Troubleshooting
Normal condition p r o c e d u r e
N o .
200 or less
1,000
400 or less to
1,000
(Changes)
400 or more
3,800 or less
1,000
Code
voltage increases
temporarily.
101
(30
88 (26