AEM 30-6040 Series 2 Plug & Play EMS - Manual (Page 6)

Page 6 of 11
Solution for distributed ignition ‘kick back’ when cranking:
With the Series 1 EMS, some vehicles would experience erratic ignition timing at low
RPM. The most noticeable symptom would be an engine that ‘kicks back’ when cranking,
and in some cases the EMS would count timing errors or lose ‘Stat Sync’ at low engine
speeds.
These problems have been eliminated by adjusting calibration settings in Series 2 Honda
EMS startup calibrations, but could be re-introduced by converting Series 1 calibrations or
copying values from Series 1 calibrations. If users wish to convert old Series 1 calibrations
for use with the new Series 2 EMS, please ensure that the following options and tables
match the Series 2 startup calibration:
Crank H Sens Below, Crank L Sens Above, Cam(T2) H Sens Below,
Cam(T2) L Sens Above, Coil Dwell Factor, Dwell Max, Dwell Min,
Dwell vs RPM (table), Dwell vs Batt Volts (table)
Wiring accessories to the EMS:
Please follow this suggested wiring diagram when adding accessories such as UEGO
gauges, Boost Control solenoids, or switches for use with the EMS. Note that wire polarity
is not important for the Boost Control Solenoid.