Vauxhall Workshop Service and Repair Manuals

Trouble-shooting:                                      Nominal Value:                       Cause of Fault:

(If nominal value is not attained)

Note:

For right-handed potentiometers, Ter. 1 to ground and Ter. 2 to positive terminal.

For left-handed potentiometers (C 30 SE), polarity is reversed.

Engine at idle speed

· Remove plug from throttle valve                           INACTIVE                                          · Short circuit between signal lead Ter. 3

potentiometer.                                                                                                                             on throttle valve plug and ground

Ter. 1 or Ter. 2 (C 30 SE).

· Lead interruption from control unit Ter. 53 to throttle valve plug Ter. 3 or from throttle valve plug Ter. 1 and Ter. 2 to control unit Ter. 26 and 12.

· Control unit defective