Fuel Cut Rpm: Inspection

WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
CONNECT HAND-HELD TESTER OR OBD II SCAN TOOL
1. Connect the hand-held tester or OBD II scan tool to the DLC3.
2. Please refer to the hand-held tester or OBD II scan tool operator's manual for further details.
INSPECT FUEL CUT OFF PRM
1. Increase the engine speed to at least 3,500 RPM.
  
  Fig 1: Connecting Hand-Held Tester To DLC3
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Use a sound scope to check for injector operating noise.
3. Check that when the throttle lever is released, injector operation noise stops momentarily and then resumes.
HINT:

Measure with the A/C OFF.

Fuel return RPM:
FUEL RETURN RPM SPECIFICATION

M/T 1,000 RPM

A/T 1,200 RPM
DISCONNECT HAND-HELD TESTER OR OBD II SCAN TOOL

Fig 2: Using Sound Scope To Check For Injector Operating Noise
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

M/T	1,000 RPM
A/T	1,200 RPM