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Home >> Jaguar >> 1979 >> XJ-S >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel Injection - LUCAS Electronic Fuel Injection >> Adjustments >> Throttle Switch

Throttle Switch

  1. Disconnect battery, remove cross-rods from throttle pulley, and pull connector off throttle switch. Remove 4 nuts and washers securing throttle pulley plate to throttle pedestal and lift plate clear. Loosen 2 screws securing throttle switch. Insert a 0.050" (1.27 mm) feeler gauge between pulley and closed throttle stop.
  2. Connect ohmmeter between terminals No. 12 and 17 of throttle switch. Turn throttle switch slowly until meter just indicates very high resistance. Tighten 2 screws securing throttle switch. Remove feeler gauge. Ohmmeter should read very low resistance when pulley is against closed stop. Reassemble and adjust throttle linkage, if necessary.