Banks Power Cummins Motorhomes: (Diesel ’98 - 03 ISC 8.3L) PowerPack TLC & Stinger TLC systems '98-03 8.3L, 315, 330 or 350-hp, 24-valve, Class-A MH, Except Common Rail - Manual (Page 9)

Checking engine Performance
Go over the entire installation as a
precautionary check to ensure that
all clamps are tight, wiring and hoses
are properly routed, and connections
are tight. Start the engine and allow
it to warm up. Drive the vehicle
under light load (normal around-
town driving) for 20 to 30 minutes,
and listen for any exhaust leaks or
rattles, or intake boost leaks. Shut
off the engine and re-tighten all
intercooler and turbocharger boost
clamps. These connections may have
loosened with time, and if leaking,
will cause a drop in boost pressure
with a loss in performance. check
that clamps are properly positioned
on hoses, and periodically check
tightness of hose clamps at regular
maintenance intervals, such as when
the oil is changed.
Observe the operation of the
boost and pyrometer gauges while
driving under varying conditions.
Turbocharger boost pressure will
increase as a function of load and
engine RPM, thus the engine will
produce little boost while cruising
at light throttle, with maximum
boost while climbing hills heavily
loaded and during acceleration.
Note the boost level seen during
hard acceleration with a given
load. If performance seems to have
deteriorated sometime in the future,
the maximum boost figures may
be compared to see if boost has
dropped off. Lower boost may be
caused by turbo ducting leaks, a
malfunctioning wastegate or fuel
injection pump, or dirty air filter.
Typical maximum boost pressure
settings may vary considerably with
model year of vehicle, engine CPL
and altitude.
Use your pyrometer gauge to
monitor exhaust gas temperature
(EGT) in the engine. At idle, exhaust
gas temperature will be very low,
perhaps only 300° F. As the engine
is accelerated for higher speeds
with greater loads, the EGT will rise.
The highest EGT will be seen under
maximum load at full throttle, such
as climbing a steep grade with a
heavily laden vehicle.
A bypass plug is included in the
kit. If the OttoMind module must
be removed for any reason, install
bypass connector on end of main
wire harness.
Your OttoMind is calibrated to
maintain a maximum EGT of 1300°F.
The EGT may exceed 1300° for
short periods of time during high-
load conditions. This is normal and
EGT should return to at or below
1300° within a few seconds. If you
find that EGT remains high for any
length of time, check for boost leaks
of a dirty air filter. If the condition
persists, contact our technical service
department at (888) 839-2700.
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