Banks Power Ford Trucks: (Diesel ’08 - 10 6.4L Power Stroke) Tuner- Six-Gun Diesel Tuner & SpeedBrake, For use with Banks iQ '08-10 Compatible with PowerPDA User Manual

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96827 v.6.0

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Section 5

CHECKING ENGINE PERFORMANCE

The Six-Gun Diesel Tuner requires the

engine coolant temperature (eCT) to

be above 110º before it will add fuel.

If the optional Banks iQ or DynaFact

®

gauges are installed, observe the

operation of the boost and pyrometer

(EGT) gauge values 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

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 will vary considerably with

stick or automatic transmission

options, year model of vehicle and

altitude.
NoTe: Before key-off, check tuner for

error codes.

Use your Banks iQ or EGT 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.
To avoid heat damage to

various engine components it is

recommended that the exhaust gases

cool below 400º before the engine is

shut down. Your Six-Gun Diesel Tuner

is calibrated to maintain a maximum

EGT of 1350°F. You may experience

brief excursions slightly above 1350°F

under acceleration. This is normal and

EGT should return to 1350°F or below

within a few seconds. If you find that

EGT remains high for any length of

time, check for boost leaks or a dirty

air filter.

-END, SEcTION 5-

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