Fuel Cut System
WARNING: This page is about a different car, the 2002 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
- Connect scan tool to data link connector No. 3. See Figure. Scan tool is used to read engine RPM. Start engine and warm engine to normal operating temperature. Ensure A/C is off. Gradually increase engine to 2500 RPM
- Using stethoscope, check for fuel injector operating sound. Ensure when throttle lever is released, fuel injector stops operating momentarily and then resumes operating (fuel return RPM). Ensure fuel return RPM is 1000 RPM. Shut engine off. Remove scan tool.