MAP-ECU2 Fuel and ignition control unit

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The MAP-ECU2 has been discontinued.  It has been replaced by the improved MAP-ECU3.

You can find the MAP-ECU3 by clicking here.

The MAP-ECU2 (Manifold Absolute Pressure Electronic Control Unit) is a full featured fuel and timing controller with the following additional features:  

• Full Timing advance and retard control of up to eight (8) channels for Distributor, Group Fire or Coil On Plug configurations using a 20 x 19 (380 zone) table.
• Auxiliary Injector control using a 20 x 19 (380 zone) table.
• OEM O2 Sensor/AFR Sensor Adjust 26 x 19 (494 zone) table allowing control over Air/Fuel ratios, even in Closed-loop mode.
• Expanded RPM scale now up to 10,000 RPM.
• Two (2) complete sets of Fuel, Timing, Auxiliary Injector, O2 Adjust and EBC tables selectable using a dashboard mounted switch.
• Electronic Boost Control with 1000 RPM target boost points.
• Launch Control
• Dual channel Fuel Cut Defeat
• Speed Cut Defeat
• Built-in 35PSI MAP Sensor
• External MAP Sensor option
• User selectable pressure scale configurations  

The MAP-ECU2 kit includes: MAP-ECU2, Main 16-Way harness, 18-Way Timing Harness, PC CDROM software, 2 meter serial cable, Inlet Air Temp (IAT) sensor and manual in PDF format.

The MAP-ECU(2) can be installed on any 1-10 cylinder engine in less than an hour, and it can completely replace the restrictive factory air meter.  

• More horsepower and torque possible by removal of the restrictive factory air meter and control over timing.
• Latest updates allow several modes of operation including MAF Sensor intercept or elimination (may require additional hardware).
• The ability to use the stock ECM to control larger fuel injectors and/or performance upgrades.
• Alter OEM Air/Fuel ratios, even in Closed-Loop mode, for improved gas mileage or power.
• Retains the daily drivability of the stock ECM which is usually sacrificed with a full aftermarket engine management upgrade.
• Real-time tuning using Windows^TM based MAP-CAL2 software supplied with the unit.
• High-resolution 494 point Fuel table (0-10,000 RPM and -10 to +35 PSI) allows fine tuning for performance and drivability.
• Ability to run different fuels or performance levels using two (2) completely independent Fuel, Timing, O2 Adjust, Auxiliary Injector and Boost Control tables switchable on-the-fly.
• Built-in display and logging of key engine parameters such as RPM, Throttle Position, Boost Pressure, Airflow, Timing Adjust, Auxiliary Injector Duty, Boost Control Duty, etc. 
• On-board support for display and logging of popular aftermarket wideband Lambda sensors/controllers.
• Two (2) independent on-board programmable NOS window activation switches can also be used to turn on other accessories at set RPM/PSI points.
• Faster and stronger boost with the on-board programmable Electronic Boost Control (EBC) using solenoid control of the wastegate.
• Fast and repeatable launches using the on-board programmable Launch Control.
• Removal of factory Fuel and Speed Cuts using the on-board programmable Fuel Cut Defeat and Speed Cut Defeat.
• Compensate for wheel size or gearing changes with the on-board programmable Speed Adjust.
• Drive a Shift Light or alter VTEC^TM point with the on-board programmable RPM Switch.
• Single unit can be used for Naturally Aspirated or forced induction applications with user selectable pressure scale configuration.
• Simple upgrade from MAP-ECU using the same 16-Way harness and ability to import and convert V2.1 and V2.2 Fuel tables.
• Simple piggy-back installation only requires 7 wires to operate with no major re-wiring of OEM components.

 

MAP-ECU2 has two basic operating modes for controlling fuel:

1. MAP-ECU2 controls the fuel by intercepting the signal from the Mass Air Flow Sensor (MAF), or the stock Manifold Absolute Pressure (MAP) Sensor, and modifying using a three dimensional map table based on engine load and engine RPM, or;
2. MAP-ECU2 can generate the signal internally based on manifold pressure and engine RPM and allows the stock Mass Air Flow Sensor (MAF) to be removed from the vehicle. This may require the use of an external MAP sensor on some vehicles.

MAP-ECU2 controls ignition timing by intercepting the signals from the stock ECU going to the igniter or smart coils, and can retard or advance the timing signals.

MAP-ECU2 units shipped from URD will contain the latest firmware updates to allow the latest features to be used.  Some features are not compatible on all vehicles and in some cases not all features can be used at the same time.  Some features may require additional hardware to use.  Please contact URD for specific information on your application.