7.8 Advanced Engine 7 ADDITIONAL ITEMS: BEYOND BASIC FUEL AND IGNITION CONTROL
• Insufficient timing retard
• Too hot a spark plug
• Faulty fuel solenoid or wiring
• Blocked fuel lines or jets
• System activated at too low an rpm
7.8.15.7 Nitrous settings
• Nitrous Control - Turns the system on or off
• Enable N2O when above - sets the minimum RPM to enable nitrous.
• And Coolant Temp above - sets the minimum coolant temperature to enable nitrous.
• And TPS > - sets the minimum throttle position to enable nitrous (Typically, nitrous should only be enabled
on a warmed up engine at wide open throttle at an RPM point where the engine is making at least as much
horsepower as the nitrous shot provides.)
• Max RPM - sets the maximum RPM to enable nitrous. You will want this off before the rev limiter engages.
• Enrich which bank - Set to "Both" for most installs. If "dual table" or Staging are in use it selects which
injector bank receives any additional fuel pulsewidth.
• On/Off vs Progressive mode - Selects between On/Off or Progressive control mode.
• Time-based or RPM-based - For progressive, chooses between time or RPM as control factor.
• Solenoid frequency - For progressive, selects nitrous solenoid frequency.
• Fuel solenoid frequency - Allows specifying a separate frequency for the fuel solenoid.
• AFR safety uses AFR2 targets - Allows optional AFR safety system to use alternate AFR targets when
nitrous is active.
AMP EFI MS3Pro manual version 1.202, firmware 1.5.0, 4/21/2017 Page 249
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