MoTeC M84 - Manual (Page 43)

MoTeC Initial Starting Procedure 41
Injector Errors
Open The Injector is open circuit - check the wiring.
Short The Injector is short circuit - check the wiring.
Peak The Injector peak current was not reached.
Possible causes:
• The Injector Current Setup Parameter IJCU is set too high.
• The battery voltage is too low.
Over Duty
The injector duty cycle is too high, typically the duty cycle should not exceed
85%.
If the injectors exceed their maximum duty then larger injectors or higher fuel
pressure is needed.
REF / SYNC Errors
The possible causes of the various errors are detailed below:
REF Error
Too many REF pulses have occurred between SYNC pulses.
Possible causes:
• A bad REF signal has caused extra pulses or a SYNC pulse has
been missed - check voltage levels with a scope
• Bad REF / SYNC alignment
• Incorrect
Setup
No REF
Two SYNC signals have occurred without a REF signal.
Possible causes:
• If the RPM is 0 then there is no signal - check the wiring and sensor
voltage levels with a scope.
• If RPM is not 0 then a bad SYNC signal has caused extra pulses -
check voltage levels with a scope.
• If RPM is low the REF and SYNC signals may have been swapped.
• Incorrect
Setup