7.10 CAN bus / Testmodes 7 ADDITIONAL ITEMS: BEYOND BASIC FUEL AND IGNITION CONTROL
First ensure that you are key-on, engine-off. In this condition, the “Enable Test Mode” button will be available.
Click the button to enable the test mode. For each of the outputs you can select the following:
• Off - turns the selected output off.
• On - turns the selected output on.
• Pulsed - pulses the output at the selected frequency and duty. (Not available on the fuel pump.)
Except for the Tach channel and stepper IAC outputs, all of these outputs are ground switched, so you will not
be able to see their status with a volt meter. Use a small test lamp or test LED connected between 12V and the
output, if you are not using them with a solenoid or the actual device you will be driving.
7.10.16 Output test mode - idle valve
The idle valve test mode can be used with the engine running or stationary. Note that with a PWM idle valve you
may need to run a temporary fused 12V supply to the valve if you normally take power from the fuel pump relay
and are testing with the engine off. You need to have enabled idle control before this is available.
AMP EFI MS3Pro manual version 1.202, firmware 1.5.0, 4/21/2017 Page 275
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