Impco HHI, Руководство по обслуживанию

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INJECTOR KILL
The Injector Kill mode is used to disable individual fuel injectors. If the Injector Kill mode is selected
with the engine running below 1000 rpm, the minimum throttle command will lock into the position it
was in when the test mode was entered. If the Injector Kill mode is selected with the engine running
above 1000 rpm, the throttle will continue to operate normally. To disable an injector, use the mouse
to select the desired injector. The word “Normal” will change to the Injector you have selected. The
injector driver can be re-enabled by selecting again. If the engine is running below 1000 rpm, the in-
jector driver will stay disabled for 15 seconds and then re-set. If the engine is running above 1000
rpm, the injector driver will stay disabled for 5 seconds and then re-set. Record the change in rpm
while each driver is disabled.
DBW TEST MODE
The DBW (Drive by Wire) test mode allows the technician to control the throttle directly with the foot
pedal or throttle input and is used during the diagnostic routines specified for FPP and TPS for Spec-
trum systems that use DBW control. FPP position displays the current position of the foot pedal as a
percentage. FPP volts display the voltage which the ECM is reading from the FPP sensor. TPS
Command displays the commanded throttle position expressed as a percentage, which is being sent
to the throttle. TPS Position is the actual percent of throttle opening being sent to the ECM from the
throttle. TPS volts display the actual TPS signal voltage the ECM is receiving from the throttle. To
select this test mode the engine must be off and the key must be in the ON position.
EXTERNAL POWER TEST
The external power test manually activates relays (relay power, fuel pump, and drive-by wire power)
controlled by the ECM while the engine is in the “Stopped” or “Running” states. Reverts to normal
operation if “Automatic” state is selected or ignition voltage is cycled from high to low.