Stack ST8150, User Manual Addendum

Page: 19 / 21

STACK ST8150 Display System Chapter 5. Installing the Display System
User Guide Addendum 13
Chapter 6. Troubleshooting
Use this table in conjunction with the ST8100 manual.
No. Symptom Possible Cause Remedy Notes
1 Boost shows -
9.99 (Bar) or -
99.9 (psi)
ST453 sensor
disconnected
Reconnect
Faulty connections Check connections Refer to harness
diagram
ST453 faulty Return for service
2 Boost shows
0.00 (Bar) or 0.0
(psi)
approximately
ST453 not
connected to
intake correctly
Check hose and
fittings
3 Boost display
incorrect or
inaccurate
Units (PSI/Bar) set
wrongly
Modify setting 1 Bar is about
14.5 psi
4 EGT Display gives
a fixed
temperature
reading of 999
° C
EGT sensor has
failed
Replace sensor Disconnect
sensor. If
reading changes
to -99, replace
sensor
Faulty sensor
connections
Check continuity
of sensor leads
Otherwise check
harness for short
circuit
5 EGT Reading
gives
Sensor has failed Replace sensor
Itermittent
readings
Faulty sensor
connections
Check continuity
of sensor leads for
open circuits.
Check harness
for open circuits
(refer to the
harness diagram)
6 Fuel Pressure
display shows an
incorrect reading
Wrong FUELP
SENSOR fitted
Fit correct sensor Other sensors
are
150psi/10Bar