Reply To: 3200GT Error, limp mode

[Lee Moore]

The full text does not specify waiting until the various warning lights have extinguished themselves after switching on ignition, but I would suggest not depressing the throttle (item 2) or start timing until they have.

Number 1 sets the minimum throttle (tickover) number 2 sets the maximum. The no throttle setting (tickover or lower value) is 350/650mv whilst full throttle (upper value) is typically 3,100/3,300mv.

Apparently, the management system strategy gradually reduces the full throttle value by 5mv (for the next switch-on) every time the ignition is turned on (whether engine started or not) UNLESS full throttle is applied for 5 seconds at least once in that cycle (eg climbing a steep hill with full throttle etc). Therefore, under certain circumstances, the full throttle setting will gradually reduce leading to over sensitivity at the pedal. The manual reset procedure restores the upper and lower values to their default design settings.

1) Reset the mechanical zero position
– Put gear lever in neutral
– Switch on ignition (to MAR position) but do NOT start the engine
– Do not touch the throttle pedal for 2 minutes
– Switch off ignition

2) Reset the mechanical Full Throttle position
– Put gear lever in neutral
– Switch on ignition (to MAR position) but do NOT start the engine
– Fully depress throttle pedal and hold for 5 seconds
– Release throttle pedal completely
– Switch off ignition