Tempo L4-140 2.3L HSC (1986)
EGR Wide Open Throttle Valve: Testing and Inspection
Functional Check
^ With the engine running at normal operating temperature, set throttle on kickdown step (high cam for 2.3L).
^ Connect a vacuum gauge to the EGR side of the WOT valve, and note the reading.
^ Apply a vacuum of at least 20.26 kPa (6 in-Hg) to the WOT venturi port (Port C).
^ Gauge should drop to zero. If not, replace the valve.
^ Remove test equipment, and restore connections.
Functional Check (Adjustment)
Adjust so that hand pump vacuum at the vacuum nipple will drop when WOT is approached without limiting throttle travel.
