GxT Ferret 63 DIAGNOSTIC ENGINE ANALYZER - Manual (Page 6)

AUXILIARY
red
SPARK PICKUP
COIL PRIMARY
green
Face Label Side
Toward Plug End
NO. 1
SPARK
PLUG
Put Amp Probe
Around Either
Battery Cable
12-VOLT
BATTERY
AMP
PROBE
EXTENSION
HARNESS
BLACK RED
BATTERY
CLIP
LEAD
Make Firm
Battery Connections
and Wiggle Clips
for Clean Contacts.
BATTERY
CLIPS
SPARK
PICKUP
AMP
PROBE
COIL /
AUXILIARY
B+
+ – – +
SETTING UP FOR TESTS
HOOKUP GUIDELINES
Color labels for matching the cable connections between
the analyzer and the clips are marked on the panel just
above the connectors. Mismatched connections will
prevent the leads from working, but will not cause harm
under normal conditions.
Take care to find a secure footing and safe lead routing
away from exhaust manifolds and fan belts.
12 VOLT BATTERY CLIP LEAD SET
These clips must have a solid connection to the battery
terminals. Reliable analyzer operation depends upon a
continuous power source. Intermittent power will reset
the analyzer to its start-up state. It is possible to draw
power from other points in the vehicle wiring, but the
measurements may be misleading because wiring resis-
tance may interfere with the tests.
AUXILIARY CLIP LEAD
This red clip does not have a specific connection for the
basic hookup. It is the input for Auxiliary Volts, Ohms/
Diode readings, Wiggle Scope, and Sensor/Fuel Injector
Pulses. See SENSOR TEST test descriptions for con-
nection locations.
-4-
IGNITION COIL PRIMARY CLIP LEAD
This green clip connects to the ignition coil primary wind-
ing minus terminal, sometimes labeled “TACH”. It is the
signal source for all of the ignition measurements, and it
is necessary for ignition suppression.
INDUCTIVE SPARK PICKUP
The best hookup arrangement is to place the pickup
around the spark plug wire, as far from the spark plug as
possible, and with the “Spark Plug” labeled side point-
ing toward the spark plug end of the wire. Be sure the
pickup magnetic cores are touching.
Placing the pickup far from the spark plug keeps it away
from the hot exhaust manifold, and improves perfor-
mance, because spark current impulses are “cleaner”
near the distributor.
When the pickup is not being used, LEAVE THE JAWS
IN THE OPEN position. The magnetic cores are made of
ferrite ceramic and when kept apart they are more likely
to not break if the pickup is dropped.
Do not run engine with the Auxiliary lead connected
to engine sensors while the spark pickup and coil
primary leads are connected to the ignition. The ana-
lyzer leads can couple ignition noise into the engine
computer and disrupt engine operation.
WARNING