The AEM FIC 6 is a powerful engine management system that can help you maximize the performance of your vehicle. To ensure that you get the most out of your AEM FIC 6, it is essential that you understand how to wire it properly. In this article, we will discuss the AEM FIC 6 wiring diagram, including how to install and troubleshoot the system.
What is the AEM FIC 6?
The AEM FIC 6 is an advanced engine management system that allows you to tune your vehicle for optimal performance. It can be used to adjust things like fuel injection, ignition timing, and boost levels. The AEM FIC 6 can work with a wide range of engines, including both fuel injected and carbureted engines. It is an excellent tool for both street and track vehicles.
The AEM FIC 6 is designed to be highly customizable, which means that it requires a complex wiring setup. It is essential that you follow the wiring diagram carefully to ensure that your system works correctly.
Wiring Diagram Overview
The AEM FIC 6 wiring diagram is quite complex, but it is broken down into manageable parts. Before you begin wiring your AEM FIC 6, you should ensure that you have a good understanding of the overall diagram. Here is an overview of the wiring diagram:
| Connector | Description |
|---|---|
| Connector J1 | Main Power and Ground |
| Connector J2 | Engine Sensors and Ignition Inputs |
| Connector J3 | Fuel Injector Outputs and Ignition Outputs |
| Connector J4 | Boost Control and Miscellaneous Outputs |
| Connector J5 | Serial Communications |
Each connector is responsible for a particular aspect of the AEM FIC 6 system. We will discuss each one in detail in the following sections.
Connector J1: Main Power and Ground
Connector J1 is responsible for providing power and ground to the AEM FIC 6 system. It consists of three pins:
- Battery Positive (+12V)
- Battery Ground (Chassis Ground)
- Ignition Switched Power (+12V only when key is in the “on” or “start” position)
It is essential that you connect these pins correctly, as they are responsible for powering the entire AEM FIC 6 system.
Battery Positive (+12V)
The Battery Positive pin should be connected directly to the positive terminal of your battery. This pin provides power to the AEM FIC 6 system.
Battery Ground (Chassis Ground)
The Battery Ground pin should be connected directly to your vehicle’s chassis ground. This pin ensures that the AEM FIC 6 system has a good ground reference and helps prevent electrical interference.
Ignition Switched Power (+12V only when key is in the “on” or “start” position)
The Ignition Switched Power pin should be connected to a power source that only provides power when the ignition key is in the “on” or “start” position. This pin ensures that the AEM FIC 6 system only turns on when your vehicle is running.
Connector J2: Engine Sensors and Ignition Inputs
Connector J2 is responsible for connecting the engine sensors and ignition inputs to the AEM FIC 6 system. It consists of six pins:
- MAP Sensor Input
- Throttle Position Sensor Input
- Crankshaft Position Sensor Input
- Camshaft Position Sensor Input (if applicable)
- Oxygen Sensor Input (if applicable)
- Ignition Trigger Input (if applicable)
It is essential that you connect these pins correctly, as they are responsible for providing the AEM FIC 6 system with the necessary input signals to adjust engine parameters.
MAP Sensor Input
The MAP Sensor Input pin should be connected to your vehicle’s manifold absolute pressure (MAP) sensor. This sensor measures the pressure inside your engine’s intake manifold and provides the AEM FIC 6 system with critical information about engine load.
Throttle Position Sensor Input
The Throttle Position Sensor Input pin should be connected to your vehicle’s throttle position sensor. This sensor measures the position of your vehicle’s throttle and provides the AEM FIC 6 system with information about driver input.
Crankshaft Position Sensor Input
The Crankshaft Position Sensor Input pin should be connected to your vehicle’s crankshaft position sensor. This sensor measures the rotation of your vehicle’s crankshaft and provides the AEM FIC 6 system with information about engine speed and position.
Camshaft Position Sensor Input (if applicable)
If your vehicle has a separate camshaft position sensor, you should connect it to the Camshaft Position Sensor Input pin. This sensor measures the position of your vehicle’s camshaft and provides the AEM FIC 6 system with information about valve timing.
Oxygen Sensor Input (if applicable)
If your vehicle has an oxygen sensor, you should connect it to the Oxygen Sensor Input pin. This sensor measures the oxygen content in your vehicle’s exhaust and provides the AEM FIC 6 system with information about air/fuel ratio.
Ignition Trigger Input (if applicable)
If your vehicle’s ignition system requires a trigger input, you should connect it to the Ignition Trigger Input pin. This pin provides the AEM FIC 6 system with information about when to fire the ignition coil.
Connector J3: Fuel Injector Outputs and Ignition Outputs
Connector J3 is responsible for connecting the AEM FIC 6 system to your vehicle’s fuel injectors and ignition outputs. It consists of eight pins:
- Fuel Injector 1 Output
- Fuel Injector 2 Output
- Fuel Injector 3 Output (if applicable)
- Fuel Injector 4 Output (if applicable)
- Ignition Output 1 (if applicable)
- Ignition Output 2 (if applicable)
- Ignition Output 3 (if applicable)
- Ignition Output 4 (if applicable)
It is essential that you connect these pins correctly, as they are responsible for controlling the fuel injectors and ignition system.
Fuel Injector 1 Output
The Fuel Injector 1 Output pin should be connected to your vehicle’s first fuel injector. This pin controls the amount of fuel that is injected into the engine.
Fuel Injector 2 Output
The Fuel Injector 2 Output pin should be connected to your vehicle’s second fuel injector. This pin controls the amount of fuel that is injected into the engine.
Fuel Injector 3 Output (if applicable)
If your vehicle has a third fuel injector, you should connect it to the Fuel Injector 3 Output pin. This pin controls the amount of fuel that is injected into the engine.
Fuel Injector 4 Output (if applicable)
If your vehicle has a fourth fuel injector, you should connect it to the Fuel Injector 4 Output pin. This pin controls the amount of fuel that is injected into the engine.
Ignition Output 1 (if applicable)
If your vehicle has a single-coil ignition system, you should connect the ignition coil to the Ignition Output 1 pin. This pin controls when the ignition coil fires.
Ignition Output 2 (if applicable)
If your vehicle has a dual-coil ignition system, you should connect one of the ignition coils to the Ignition Output 1 pin and the other to the Ignition Output 2 pin. These pins control when the ignition coils fire.
Ignition Output 3 (if applicable)
If your vehicle has a triple-coil ignition system, you should connect one of the ignition coils to the Ignition Output 1 pin, another to the Ignition Output 2 pin, and the third to the Ignition Output 3 pin. These pins control when the ignition coils fire.
Ignition Output 4 (if applicable)
If your vehicle has a four-coil ignition system, you should connect one of the ignition coils to each of the Ignition Output pins. These pins control when the ignition coils fire.
Connector J4: Boost Control and Miscellaneous Outputs
Connector J4 is responsible for connecting the AEM FIC 6 system to your vehicle’s boost control system and other miscellaneous outputs. It consists of six pins:
- Boost Control Output
- Output 1
- Output 2
- Output 3
- Output 4
- Output 5
It is essential that you connect these pins correctly, as they are responsible for controlling various outputs on your vehicle.
Boost Control Output
The Boost Control Output pin should be connected to your vehicle’s boost control solenoid. This pin controls the amount of boost that your vehicle produces.
Output 1-5
The Output 1-5 pins can be used to control various outputs on your vehicle, such as fans or lights. You can customize these outputs to suit your specific needs.
Connector J5: Serial Communications
Connector J5 is responsible for connecting the AEM FIC 6 system to your computer. It consists of four pins:
- TXD
- RXD
- Ground
- Power
It is essential that you connect these pins correctly, as they are responsible for communicating with your computer.
TXD
The TXD pin should be connected to a serial port on your computer. This pin transmits data from the AEM FIC 6 to your computer.
RXD
The RXD pin should be connected to a serial port on your computer. This pin receives data from your computer and sends it to the AEM FIC 6.
Ground
The Ground pin should be connected to your computer’s ground reference. This pin ensures that the AEM FIC 6 and your computer have a common ground reference.
Power
The Power pin should be connected to a power source that provides +5V DC. This pin provides power to the serial communication circuitry on the AEM FIC 6.
FAQs
Q: What should I do if my AEM FIC 6 system isn’t working?
A: First, check your wiring to ensure that everything is connected correctly. If you are still experiencing issues, consult the AEM FIC 6 manual for troubleshooting tips.
Q: Can the AEM FIC 6 be used on carbureted engines?
A: Yes, the AEM FIC 6 can be used on both fuel injected and carbureted engines.
Q: Is it necessary to use a dyno when tuning with the AEM FIC 6?
A: While it is not strictly necessary to use a dyno, it can be helpful for fine-tuning your settings and maximizing performance.
Q: Can the AEM FIC 6 be used with a standalone engine management system?
A: Yes, the AEM FIC 6 can be used with standalone engine management systems to provide additional tuning options.
Q: Can the AEM FIC 6 be used with forced induction?
A: Yes, the AEM FIC 6 can be used with forced induction systems to adjust boost levels.
Conclusion
The AEM FIC 6 is a powerful engine management system that can help you maximize the performance of your vehicle. By following the wiring diagram carefully, you can ensure that your AEM FIC 6 system works correctly and provides you with the tuning options you need to achieve optimal performance.
