Fuel Cut System
- When testing fuel cut system, monitor engine RPM using scan tester. Connect scan tester to data link connector No. 3 for monitoring engine RPM. For connecting of scan tester, see appropriate application under IDLE SPEED & MIXTURE in ADJUSTMENTS
article.
- Start and warm engine to normal operating temperature. Ensure A/C and all accessories are off. Gradually increase engine RPM to at least 3500 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 within specification. See FUEL CUT SYSTEM SPECIFICATIONS table. Shut engine off. Remove test equipment.
FUEL CUT SYSTEM SPECIFICATIONS
| Application |
Fuel Return RPM |
| Avalon |
1200 |