AEM 30-6905 Universal Programmable EMS-4 - Manual (Page 142)

Page 142 of 279 EMS-4 Install and Tuning Guide_Rev 1.6
Basic Tuning
Timing Pickup Confirmation
The Timing Pattern Basics section above presented a brief overview of how the options and
tables in AEM Tuner are used to configure a calibration for use with a certain timing pattern.
This section will describe how to confirm the EMS is receiving the proper timing pattern
information before attempting to start the engine for the first time.
For this test it is important to disconnect the following items:

All fuel injectors

All ignition coils

Remove the fuel pump relay or fuse to disable pump function
At this point, we do not want the engine to try and start. We want to
confirm proper timing pattern inputs only.