Throttle Full Open Switch HVAC: Description and Operation

A switch assembly, Figure 1 is mounted on the carburetor on some gasoline engines and on the fuel injector pump on the 2.0L Diesel engine to sense a wide open throttle condition. When maximum engine power is required, this switch assembly cuts off the air conditioning compressor to reduce engine loading.







Switch closed at throttle opening less than wide open throttle. Switch open at wide open throttle condition.