Diagnostic Accessories - EMS 5003 Operator's Manual

Pre-Cat
Probe
EMS also offers a pop nut insert tool kit (Fig.58) for the pre-cat probe w/ a 1/4"-20 threaded end.
The kit includes the pop nut insert tool, 1/4-20 mandrel, box of 40 nuts, 50 pc's 1/4-20x3/8"
stainless steel SHCS, 25/64" drill bit The EMS EVAP probe,( small engine) (Fig. 59) is 3/16"
O.D. and very flexible to help find radiator or exhaust leaks in tight spaces.
Figure 58

Diagnostic Accessories

Water trap
Assembly
The Y-Valve assembly (Fig. 56)
was designed for pre-catalytic
converter testing and dual exhaust
testing. With the real benefit being
able to hook up both pre & post
Post-Cat
cat sample hose & probes. And
Probe
switch between both readings at
the analyzer, which saves you
time. Also check back pressure
on the pre-cat side at the analyzer
with our in-line pressure gauge
(Fig.57)
Y-Valve
Assembly
EVAP
Probe
Figure 56
32
Figure 57
Figure 59