Mitsubishi Stealth 1994 Import Service Manual page 1226

HEATERS AND MANUAL AIR CONDITIONING
3
A b n o r m a l \
Engine speed rpm
Clutch coil
Crankshaft
REVOLUTION PICK UP SENSOR CHECK
Measure the resistance between terminals @ and @ of the
connector.
Normal resistance: 405 +_ 35 R when ambient temperature
If the measurement deviates greatly from the above resist-
ance, replace the revolution pick up sensor assembly.
CONTROL VALVE CHECK
The control valve detects a low pressure level during the
operation of the air conditioning, and adjusts the amount of
refrigerant to be bypassed.
(1) Operate the air conditioning under a high temperature load
condition (when vehicle interior temperature is high).
Normal
(2) Connect a low pressure gauge to the air compressor.
(3) Operate the air conditioning with the engine running at idle.
(4) Gradually increase the engine speed while observing the
low pressure gauge.
If the valve is normal, the low pressure drops slowly as the
engine speed increases until a pressure of 200 - 150 kPa
(30 - 20 psi) is reached, at which point the pressure
temporarily ceases to drop. Then, the pressure again starts
dropping as the engine speed further increases.
If the valve is abnormal, the low pressure drops in direct
proportion to the increase in engine speed without a
temporary leveling off at the 200 - 150 kPa (30 - 20 psi)
pressure level.
If the low pressure drops like this, replace the control valve.
SERVICE POINTS OF REASSEMBLY
8. INSTALLATION OF CLUTCH COIL
Align t,he pin of the clutch coil with the pin hole in the front
housing, and then fit it into the hole.
7. INSTALLATION OF SNAP RING
Snap-ring
Install the snap ring so that the tapered surface is at the
outer side.
is 20°C (68°F)