Installation Instructions for: EMS P/N Miata

Transcription

1 Installation Instructions for: EMS P/N Miata! WARNING: This installation is not for the tuning novice nor the PC illiterate! Use this system with EXTREME caution! The AEM EMS System allows for total flexibility in engine tuning. Misuse of this product can destroy your engine! If you are not well versed in engine dynamics and the tuning of management systems or are not PC literate, please do not attempt the installation. Refer the installation to a AEM trained tuning shop or call for technical assistance. You should also visit the AEM EMS Tech Forum at NOTE: AEM holds no responsibility for any engine damage that results from the misuse of this product! This product is legal in California for racing vehicles only and should never be used on public highways. ADVANCED ENGINE MANAGEMENT INC th Street Unit A Hawthorne, CA Phone: (310) Fax: (310) Instruction Part Number: Advanced Engine Management, Inc. Page 1 of 1

2 Congratulations! You have just purchased the finest Engine Management system for your car at any price! The AEM Engine Management System (EMS) is the result of extensive development on a wide variety of cars. Each system is engineered for the particular application. The AEM EMS differs from all others in several ways. The EMS is an all new stand alone system, which completely replaces the factory ECU and features unique Plug and Play Technology, which means that each system is configured especially for your make and model of car. There is no need to modify your factory wiring harness and in most cases your car may be returned to stock in a matter of minutes. The AEMPro software is configured to work with the factory sensors and equipment, so that there is no need for expensive or hard to find sensors, making replacement and repairs as simple as with an unmodified car. For stock and some slightly modified cars, the AEMPro software will be preprogrammed with a set of base parameters, providing a starting point for individual tuning. For more heavily modified cars, the EMS has many spare inputs and outputs allowing the elimination of separate rev-limiters, boost controllers, nitrous controllers, and fuel computers. It includes a configurable onboard data logger capable of recording 512kb of information. Every EMS comes with all functions installed and activated, and there are no expensive options or upgrades to be performed. The installation of the AEM ECU on the Mazda Miata uses the stock sensors and actuators. The base map is automatically installed in the calibrations directory in the AEMPro directory on your computer. It is named 1720.V1.03.CAL. Full details of the test vehicle used to generate this map can be found in the files notes section. However, while the base map is a good starting point and may save you considerable time and money, it will not replace the need to tune your specific application. It is not intended to be driven aggressively. Ignoring this can and will damage your engine. Please visit the AEM EMS Tech Forum at and register your EMS before you start to use it. Make sure you enter your EMS serial number when you register as doing this grants access to the calibration files. We always post the most current strategy release, PC Software and base calibrations online. On the forum, you will find many helpful hints/tips to make your EMS perform it s best. Also, we may make available EMS maps for engines running speed density, larger turbo, etc Read and understand these instructions BEFORE attempting to install this product. 1) Removing the Stock Engine Control Unit a) Access the stock Engine Control Unit (ECU). The location of the ECU on the Mazda Miata is behind the passenger seat, under the carpet. b) Carefully disconnect the wiring harness from the ECU. Avoid excessive stress or pulling on the wires, as this may damage the wiring harness. Some factory ECU s use a bolt to retain the factory connectors, and it must be removed before the harness can be disconnected. There may be more than one connector, and they must all be removed without damage to work properly with the AEM ECU. Do not cut any of the wires in the factory wiring harness to remove them. Page 2 of 2

3 c) Remove the fasteners securing the ECU to the car body, and set it aside. Do not destroy or discard the factory ECU, as it can be reinstalled easily for street use and troubleshooting. 2) Install the AEM Engine Management System. a) Plug the factory wiring harness into the AEM ECU, and position it so that the wires are not pulled tight or stressed. Secure it with the provided Velcro fasteners. b) Plug the comms cable into the EMS and into your PC. c) Turn your ignition on but do not attempt to start the engine. d) Upload the base calibration file (.cal) that most closely matches your vehicle s configuration. (These files can be found in the AEMPro/Base Calibrations/Mazda folder on your computer s hard drive) e) Set the throttle range: Select the Configure drop down menu, then ECU Setup Set Throttle Range and then follow the direction given on the screen. f) Verify the ignition timing by selecting the Configure drop down menu, then ECU Setup Set Ignition. Use a timing light and compare the physical timing numbers to the Parameter Ignition Timing displayed. Use the Advance/Retard buttons to make the timing number match. 3) You are now ready to begin tuning your vehicle. a) Note: This calibration needs to be properly tuned and is not recommended for street use. NEVER TUNE YOUR VEHICLE WHILE DRIVING. Page 3 of 3

4 Application Notes for EMS P/N Mazda Miata Make: Mazda Supplied Connectors: -- Model: Miata Spare Injector Drivers: Inj #5, Pin 2F Years Covered: Spare Injector Drivers: Inj #6, Pin 2E Engine Displacement: 1.8L Spare Injector Drivers: Inj #7, Pin 2D Engine Configuration: I4 Spare Injector Drivers: Inj #8, Pin 2C Firing Order: Spare Injector Drivers: Inj #9, Pin 2B N/A, S/C or T/C: N/A Spare Injector Drivers: Inj #10, Pin 2A Load Sensor Type: MAF Spare Coil Drivers: Coil # 3, Pin 1i Map Min: N/A Spare Coil Drivers: Coil # 4, Pin 1S Map Max: N/A Spare Coil Drivers: Coil # 5, Pin 2H # Coils: 2 Spare Coil Drivers: --- Ignition driver type: 0-5V Logic Boost Solenoid: PW #2, Pin 1V How to hook up a CDI: Wire after igniter EGT #1 Location: Pin 4Y # Injectors: 4 (Inj 1-4) EGT #2 Location: Pin 4E Injector Flow Rate: 245 cc/min EGT #3 Location: -- Injector Resistance: 16 Ω EGT #4 Location: Pin 3H Injection Mode: Sequential Spare 0-5V Channels: PR Press, Pin 1H Knock Sensors used: None Spare 0-5V Channels: Gear, Pin 3J Lambda Sensors used: 1 Spare 0-5V Channels: Ftemp, Pin 3N Idle Motor Type: PW Spare Low Side Driver: Low Side #4, Pin 1N Main Relay Control: None Spare Low Side Driver: Low Side idle 5, Pin 1D Crank Pickup Type: Logic Spare Low Side Driver: Low Side idle 7, Pin 1F Crank Teeth/Cycle: 2 teeth 4 edges Knock Sensor inputs: Knock 1, Pin 1t, Knock2, Pin 3A Cam Pickup Type: Logic Check Engine Light: Low Side #10, Pin 1E Cam Teeth/Cycle: 2 teeth varying lengths Spare Switch Input: Switch #5, Pin 1J Transmissions Offered: M/T, A/T Spare Switch Input: Switch #6, Pin 3L Trans Supported: M/T Only A/C Switch Input: Switch #4, Pin 1K Drive Options: RWD Clutch Switch Input: Switch #3, Pin 1L Page 4 of 4

5 Connection Diagram for EMS P/N Miata PnP Plug and Play system is ready for use, and may be configured by AEM. Avail The function is not currently allocated and is available for use Dedicated Means the location is fixed and cant be changed Pin # ems I/O Availability 1A COOLING FAN RELAY LS2 Output PNP for radiator fan 1B A/C CONDENSOR FAN LS5 Output PNP for Condensor fan 1C STARTER INPUT 12v sw in while cranking Input Not Used 1D DIAGNOSTIC PORT Idle 5 Output Available Idle drive 1.5 amp max 1E CHECK ENGINE LS10 Output PNP for check engine light 1F Not Used Idle 7 Output Available Idle drive 1.5 amp max 1G A/C RELAY LS9 Output PNP for A/C clutch relay 1H INPUT FOR HEADLIGHTS ON PR Press Input Available 0-5v input 1I DIAGNOSTIC PORT Coil 3 Output Available switched GND 1.5 amp 1J REAR WINDOW DEFROST IN Switch #5 Input Available switched input 1K A/C PRESSURE SWITCH Switch #4 Input PNP for A/C request 1L CLUTCH SWITCH Switch #3 Input PNP for clutch switch 1M VSS Vehicle Speed Input Dedicated 1N Not Used LS4 Output Available switched GND 1.5 amp 1O CHASSIS GROUND Chassis Ground Output Dedicated 1P HEATER CONTROL Spare Speed Input Available Switch input 1Q BRAKE SWITCH Switch #1 Input Available Switch input 1R AUTO TRANS FAIL INPUT Map Input 1S Not Used Coil 4 Output 1T AUTO TRANS TEST SIGNAL Knock1 Input 1U FUEL PUMP RELAY LS11 Output Dedicated 1V Not Used PW2 Output 2A Not Used Injector 10 Output Available switched GND 1.5 amp 2B Not Used Injector 9 Output Available switched GND 1.5 amp 2C Not Used Injector 8 Output Available switched GND 1.5 amp 2D Not Used Injector 7 Output Available switched GND 1.5 amp 2E Not Used Injector 6 Output Available switched GND 1.5 amp 2F Not Used Injector 5 Output Available switched GND 1.5 amp 2G Not Used HS4 Output Available +12v switched 4 amp 2H Not Used Coil 5 Output Available switched GND 1.5 amp 2I Not Used Idle 4 Output Available Idle drive 1.5 amp max 2J Not Used Idle 3 Output Available Idle drive 1.5 amp max 2K Not Used Idle 2 Output Available Idle drive 1.5 amp max 2L Not Used Idle 1 Output Available Idle drive 1.5 amp max 3A Not Used Knock 2 Input Available for 2nd Knock sensor 3B MASS AIR SENSOR INPUT MAF Input PNP for Mass air 3C FRONT O2 INPUT LAMBDA 1 Input PNP for front O2 sensor Page 5 of 5

6 3D REAR O2 INPUT LAMBDA 2 Input PNP for Rear O2 Sensor 3E Not Used HS3 Output Available +12v switched 4 amp 3F TPS Tps Sensor Input Dedicated 3G COOLANT Coolant Sensor Input Dedicated 3H EGR BOOST SENSOR EGT4 Input Available 0-5v input 3I 5V REF 5V ref Output Dedicated 3J EGR VALVE POSITION SENS Gear Input Available 0-5v input 3K AIT Air Temp sensor Input Dedicated 3L IDLE SWITCH Switch #6 Input Available Switch input 3M FRONT O2 HEATER LS1 Output PNP for front O2 sensor heater 3N EGR BOOST SENSOR FTEMP Input Available 0-5v input 3O SENSOR GROUND Sensor Ground Output Dedicated 3P P/S PRESSURE Switch #2 Input Available Switch input 4A CHASSIS GND Chassis Ground Output Dedicated 4B 12v in 12v switched Input Dedicated 4C CHASSIS GND Chassis Ground Output Dedicated 4D CHASSIS GND Chassis Ground Output Dedicated 4E Crank miss-fire sensor N/U EGT2 Input Available EGT 4F CRANK Crank sensor input Input Dedicated 4G CAM INPUT cam Input Dedicated 4H Timing ground for crank pickup Crank missfire ground Output Dedicated 4I PERM Permanent Power Input Dedicated 4J PRC solenoid valve LS12 Output PNP for PRC solenoid 4K CHASSIS GROUND Chassis Ground Output Dedicated 4L TACHOMETER LS7 Output Dedicated 4M Not Used HS1 Output Available +12v switched 4 amp 4N COIL 1 Coil 1 Output Dedicated 4O EGR Vent LS6 Output PNP for EGR 4P EGR Vacuum LS8 Output PNP for EGR vacum 4Q IDLE CONTROL PW1 Output Dedicated 4R COIL 2 Coil 2 Output Dedicated 4S Not Used Sensor Ground Output Dedicated 4T PURGE LS3 Output PNP for Purge 4U INJECTOR 1 Inector 1 Output Dedicated 4V INJECTOR 2 Injector 2 Output Dedicated 4W INJECTOR 3 Injector 3 Output Dedicated 4X INJECTOR 4 Injector 4 Output Dedicated 4Y A/T WATER TEMP IN EGT1 Input Available EGT 4Z Not Used HS2 Output Available +12v switched 4 amp Page 6 of 6

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