1991 LEXUS SC400 Service Repair Manual

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Page 2049 of 4087

LEXUS SC400 1991 Service Repair Manual 6. REMOVE UPPER HIGH±TENSION CORD COVER(a) Remove the two mounting bolts. (b) Disconnect the front side claw groove of the cord coverfrom the claw of the lower cover, and remove the cord cover.

Page 2050 of 4087

LEXUS SC400 1991 Service Repair Manual 11. REMOVE LH NO.3 TIMING BELT COVER(a) Remove the four mounting bolts. (b) Disconnect the cord grommet from the timing belt cover, and remove the timing belt cover. (c) Remove the cord grommet

Page 2051 of 4087

LEXUS SC400 1991 Service Repair Manual (2) Water by±pass hose from ISC valve (3) (USA Spec.)Vacuum hose (4) (Exc. USA Spec.) Three vacuum hoses (c) Remove the two bolts and two nuts, disconnect the throttle body from the air intake ch

Page 2052 of 4087

LEXUS SC400 1991 Service Repair Manual 15. DISCONNECT HOSESDisconnect the following hoses:(1) Water by±pass hose (from water inlet housing) from ISC valve (2) Vacuum hose (from PS air control valve) from air in- take chamber (3) Vacuum

Page 2053 of 4087

LEXUS SC400 1991 Service Repair Manual (b) Remove the union bolt and two gaskets, and disconnectthe cold start injector tube from the RH delivery pipe. (c) Remove the two bolts and gasket, and disconnect the EGR pipe from the air intake

Page 2054 of 4087

LEXUS SC400 1991 Service Repair Manual (b) Remove the union bolt, two gasket, and cold startinjector tube. (c) Remove the two bolts, cold start injector and gasket. INSPECTION OF COLD START INJECTOR 1. INSPECT RESISTANCE OF COLD START

Page 2055 of 4087

LEXUS SC400 1991 Service Repair Manual (e) Using SST, connect terminals +B and FP of the check(ºDIAGNOSISº) connector. SST 09843±18020 (f) Reconnect the cable to the negative (±) terminal of the battery. (g) Turn the ignition swit

Page 2056 of 4087

LEXUS SC400 1991 Service Repair Manual INSTALLATION OF COLD START INJECTOR (See Components on page FI±26) 1. INSTALL COLD START INJECTOR (a) Install a new gasket and the injector with the two bolts. Torque: 7.8 N Vm (80 kgf Vcm, 69 in.
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