Fuel Cut System Operation
WARNING: This page is about a different car, the 1995 Lexus LS 400. However, it is still accessible from the selected car via links, so may be relevant.
- Start and warm engine to operating temperature. Turn A/C off. Use a stethoscope to listen for injector operating noise (or feel for vibration with finger).
- Increase engine speed to at least the following specification. See CONNECTING TACHOMETER under INTRODUCTION.
- 2500 RPM.
- Release throttle lever. When throttle lever is released, injectors should stop operating until engine speed decreases to 1400 RPM.