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will perform a good crimp but a 4 to 5 pound pull test must be performed. To install a D-sub pin onto a 20
ga. Tin Copper Wire, perform the following steps:
A. Strip the insulation back 1/8.” Be careful not to knick the wire.
B. Insert the pin into the 24 ga. D-sub Pin Crimper. The crimpers have two cavities; the smaller one is
used to crimp the bare wire and the slightly larger one is used to crimp around the insulation.
Check that the pin is inserted into the crimpers properly. Also, the ears on the pin must be facing
into the center of the crimp tool cavity to produce a good crimp. If the pin rotates even a little
during crimping, the connection will be unreliable.
C. Insert the wire into the pin. Check that the insulation is in the strain relief crimp area but not in the
bare wire crimp area. Crimp the pin onto the wire. A good crimp is very important
A good crimp is very important
A good crimp is very important
A good crimp is very important
A good crimp is very important.
.
.
.
. Poor
Poor
Poor
Poor
Poor
crimps will cause jumpy readings and are the biggest source of problems
crimps will cause jumpy readings and are the biggest source of problems
crimps will cause jumpy readings and are the biggest source of problems
crimps will cause jumpy readings and are the biggest source of problems
crimps will cause jumpy readings and are the biggest source of problems.....
D. Pull Test: Pull (approximately 4 to 5 pounds) on the wire near the connector with one hand while
holding the connector with the other hand. If the wire pulls out of the connector or feels loose,
you must start over using a new connector.
E. A well soldered connection at the crimp can be reliable. Soldering a TC wire requires a lot of heat
to produce a good solder connection. Also, when soldering a TC wire each wire should be
scraped with a knife to expose fresh metal just before crimping and applying solder. Fluxing the
TC wire can also help. Do not use acid core solder or acid flux, this will cause conductive paths
between the connectors.
Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting the CGR system can be relatively simple. First the CGR must be powered-up. This
requires only a power and ground connection to the CGR. Next the EDC needs to be powered-up and
communicating with the CGR. Power and ground are supplied to the EDC on two wires and the EDC
communicates with the CGR on one 5V-Serial wire. A "COM" error will be displayed if the EDC is not
communicating with the CGR.
The rest of the system is made up of individual functions performing independently of each other. A
problem with a pressure channel will most likely be found in the connection to the transducer, the wire
from the transducer to the EDC or the EDC connection. This same scenario is true for all the functions.
Rarely is there any problems with the EDC or CGR. In some cases the problem can be in the setup pro-
gramming of the CGR.
7.1 CGR or EDC Problem:
The CGR and EDC require power and ground to operate. The EDC also requires one 5V-Serial wire to
communicate with the CGR. The EDC also supplies power to the Fuel Flow, Fuel Level, and Pressure
Transducers. If these power wires become shorted, the EDC operation will be affected.
A. Symptom:
A. Symptom:
A. Symptom:
A. Symptom:
A. Symptom: The CGR does not power up.
