Mitsubishi Eclipse 1990 Service Manual page 642

THROTTLE BODY
CLEANING
1. Start the engine and warm it up
to
2. Remove the air intake hose from the
3. Plug the bypass passage inlet
Caution
Do not allow cleaning solvent to enter the bypass
passage.
4. Spray cleaning solvent into the valve through
body intake port and leave it for about 5
5. Start the engine, race it several times and idle it for about
1 minute. If the idling speed becomes unstable (or if the
engine stalls) due to the bypass passage being plugged,,
slightly open the throttle valve to keep the
6. If the throttle valve deposits are
steps 4 and 5.
U n p l u g t h e
7.
8. Attach the air intake hose.
9. Use the scan tool to erase the
10. Adjust the basic idle speed. (Refer to
NOTE
If the engine hunts while idling after
basic idle speed, disconnect the
for 10 seconds or more, and then reconnect it and run
the engine at idle for about
the coolant is
higher and then stop the
of
removed, repeat
passage inlet.
cable from the battery
minutes.
.
throttle'
code.
of the