AEM 30-1960 Fuel Ignition Controller 6 Channel User Manual

F/IC Quick Start Guide/Tuning Tips

2005-2006 Scion tC

F/IC P/N 30-1910

Suggested Tools:

Multimeter
OBDII Scanner

10-1960 FIC Quick Start Guide Rev B.doc

1

F/IC OVERVIEW

The new Fuel/Ignition Controller from AEM Performance Electronics is a powerful tuning tool,
designed to allow the addition of forced induction intake systems on normally aspirated,
computer controlled race vehicles.

By design, the new F/IC is a “piggyback” style ECU that works in conjunction with the factory
ECU. Thus, the key to allowing your engine to run at its full potential is making the F/IC work in
harmony with the factory ECU. As technology advances, factory ECU’s are getting smarter.
Most modern OBD-II ECU’s are capable of recognizing even the slightest fuel changes and will
quickly “correct” the fuel quantity. In order for the F/IC installation to be successful, the engine
must be tuned so the closed loop factory fuel conditions remain the same. When in closed loop,
the factory ECU will undo any change in fuel quantity you attempt to make. If you try and fight
the factory ECU you will not be successful.

1) WIRING THE F/IC

Install the FIC into your vehicle using the wiring diagram provided on the first page. To make
the install easier, and to save the factory harness from being cut, the use of an AEM Plug n Play
FIC harness or Patch/Extension harness is recommended. The harness part numbers are listed
below.

Plug n Play Harness: 30-2913
Patch/Extension Harness: 30-2992

2) Boost Reference

Connect the pressure port on the front panel of the FIC to an adequate intake manifold pressure
source (downstream of the throttle body) using the supplied boost hose, tee fitting, and zip ties.

3) Configuring the F/IC

Download the FIC software from the AEM Performance Electronics forum at

http://forum.aempower.com/forum/index.php/topic,26751.0.html

. The FIC supplied in the kit is
preloaded with the basemap listed below. Open the F/IC software and go to File>Open and
direct the software to the Basemap (C:program files/AEM/FIC/Basemaps) listed below.

Basemap: Basemap 30-1960 Scion tC 05-06 Stock Injectors 4100
Connect the F/IC to the computer using the supplied USB cable and allow the USB drivers to

load. In the F/IC software, go to ECU>Connect. When the Cal File Mismatch window appears,
click on the button “From F/IC” to connect. The basemap contains very conservative fuel and
timing maps, along with the necessary MAF/MAP/O2 settings. The basemap is intended to get
your engine running, and point you in the right direction for tuning. It is NOT a fine tuned map
for your vehicle. Further tuning is required.

4) STARTING THE ENGINE

Before starting the car, it is a good idea to disconnect the battery and allow the factory ECU fuel
trims to reset. This usually happens within 5 minutes of disconnecting the battery. Start the
vehicle and allow the engine to idle while monitoring fuel trims with an OBDII style scanner.
Adjust the values in the fuel table until the fuel trims are as close to zero as possible.

5) TUNING RECOMMENDATIONS

Visit the video gallery at www.aempower.com

for F/IC instructional videos.
All tuning should be performed on a suitable chassis dyno, using an Air Fuel Ratio (AFR)
monitoring device such as the AEM 30-4100 Digital Wideband UEGO Gauge, or the 30-5130
Analog Style Wideband UEGO Gauge. For datalogging and easy AFR reference, the analog
output (White wire on gauge harness) from either of the Wideband UEGO Gauges can be
connected to the F/IC using the unterminated Brown wire labeled “UEGO” on the 30-2913 PNP
FIC Harness.

10-1960 FIC Quick Start Guide Rev B.doc

2