FUEL SYSTEM <DOHC> Service Adjustment Procedures
NOTE
For rpm, one-half of the actual engine rpm is indicated,
so the actual engine rpm in two times the indicated
value shown by the tachometer. <From 1990 models>
Use a jumper wire to ground the diagnostic test mode
control terminal of the data link connector.
(4) Use a jumper wire to ground the terminal for adjustment of
ignition timing.
(5) Start the engine and let it idle.
(6) Check the standard idling rpm.
If the scan tool is used, select item
and read out the
idling rpm.
Basic idle speed:
rpm <Non-Turbo>
50 rpm <Turbo>
NOTE
1. The engine speed may be 20 to 100 rpm lower than
indicated above for a new vehicle [driven approximately
500 km (300 miles) or less], but no adjustment is
necessary.
2.
If the engine stalls or the rpm is low even though the
vehicle has been driven approximately 500 km (300
miles) or more, it is probable that deposits are adhered
to the throttle valve, so clean it. (Refer to
TSB Revision
(7) If not within the standard value range, turn the engine
speed adjusting screw (RPM adjusting screw) to make the
necessary adjustment.
NOTE
If the idling speed is higher than the standard value range
even when the RPM adjusting screw is fully closed, check
whether or not there is any indication that the CTP switch
(fixed SAS) has been moved.
If there is an indication that it has been moved, adjust the
CTP switch (fixed SAS). If there are no indications that it
has been moved, it is possible that there is leakage as a re-
sult of deterioration of the fast idle air valve (FIAV), and, if
so, the throttle body should be replaced.
Summary of Contents for 1989 Galant
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