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External MAP, Injector Duty, MAF overview
The connection of the External MAP/MAF pin will depend on the desired mode of operation.
Please follow the table in determining where to connect this wire.
Pin Installation location
*Connect to signal output from MAF/MAP where signal
range is 0V-5V.
*Connect to the injector duty signal that is active low. Multi-
Pulse Injection, as is found on some diesel applications, is
NOT supported. Please verify a single pulse for each
injection event with an oscilloscope prior to operation.
Frequency MAF
(40Hz - 220Hz)
*Connect to the frequency MAF signal.
Frequency MAF
(400Hz – 2200Hz)
*Connect to the frequency MAF signal.
Frequency MAF
(2kHz – 14kHz)
*Connect to the frequency MAF signal.
*Please consult the factory service manual to find the appropriate wire to tap for the above connections. It is
acceptable to make this tap close to the sensor/injector or nearer to the ECU itself; whichever is more convenient.