500SEC (140.070) V8-5.0L (119.970) (1993)
Warm-up RPM Chart
Warm-up Control Function
The warm-up control is effective at all engine temperatures. After each start-up (accelerator pedal in idle position) the engine increases the idle
speed for approx 20 seconds. Between 20 °C (68 °F) and 30 °C (86 °F) the engine speed is 800 - 900 RPM.
A/C engagement Control Function
When the A/C compressor is turned on, the throttle valve opening is increased before the A/C compressor engages. This keeps the engine idle
speed at a nearly constant RPM.