Cold Start & Idle Control Devices
Auxiliary Air Valve, Idle Speed Control Stabilizers, Idle Speed Controllers and Warm Up Regulators are devices designed to improve idle mixture control. Failure of any of these devices can cause rough running and high fuel consumption.
The pressure sensor is one of the engine or exhaust sensors that provide the ECU with input data. Failure of any of these sensors can result in poor performance, excessive fuel consumption, and emission inspection failure.