AEM 30-6100 Series 2 Plug & Play EMS - Manual (Page 6)

Page 6 of 12
This product is legal in California for racing vehicles only and should never be used on public highways.
WARNING: Reducing the voltage sent to the fuel pump can affect fuel pump output (volume
and/or pressure). If you wish to decrease pump speed, monitor fuel pressure and air-fuel ratio
very carefully to avoid engine damage!
WARNING: Do not use pin 22A to control a fuel pump relay directly, it must be connected to
the OEM fuel pump ECU only. If an aftermarket fuel pump relay will be installed, wire it to be
controlled using a spare low side output (for instance, LS9 is available on pin 68B). Be sure to
configure the output to use the Fuel Pump function using Tools>>Configure Outputs.
EMS Fuel Map, Boost Fuel Trim Table
The 30-6100 maps provided utilize the “Boost Fuel Trim Table” to provide a 1:1 fuel
compensation above atmospheric pressure. In the startup calibration, the “Boost Fuel Trim
Table” is configured to provide twice as much fuel when the manifold pressure is twice as high;
this should help simplify the tuning process for different boost levels. Notice the values in the
main “Fuel Map” do not change above 100 kPa (0 psi boost), the fuel correction is being made
by the “Boost Fuel Trim Table.” Note: the “Boost Fuel Trim Table” must be adjusted if a
different map sensor is installed or if the Load breakpoints are adjusted. The Boost Fuel
Correct value should be set to 0 at 100 kPa, +100 at 200 kPa, +200 at 300 kPa, etc…
Sequential Ignition Coil Outputs
The 30-6100 EMS is equipped with six (6) sequential coil outputs. Ignition timing for each
cylinder can be independently trimmed if desired using the “Coil1 – Coil6 Ign Trim” tables.
Peak and Hold Injector Drivers
Injectors 1-12 include Peak (4 amps) and Hold (1 amp) injector drivers. These drivers may be
used with peak and hold or saturated type injectors. The factory Toyota wiring harness
contains a resistor pack to prevent excessive current when using low-impedance injectors with
the stock ECU. With the 30-6100 installed, users can elect to remove and bypass the OEM
resistor pack for more precise control of low-impedance injectors.
Please note that the injector response time will be different with and without the factory injector
resistor pack. If the OEM resistor pack has been removed and bypassed, please choose the
correct battery offset for your injectors using the Setup Wizard. Most battery offset wizard
configurations will specify <P&H DRIVER> if they are intended for use without a resistor pack.