Neptune
Neptune Chip Tuning: $2000TT
ROM Features - These are the features our dealers can setup for you on a NepTune chip without any extra hardware. A small license fee is required to be tuned on NepTune.
*Fuel/Ignition Maps
Primary and Secondary MapsPrimary and Secondary low and high cam fuel and ignition maps. 8 maps total. 24 load breakpoints by 24 rpm breakpoints for precise tuning. Low and high cam both can be scaled to go to 11000 and above
Rev Limits/VTEC
Rev Limits Per Gear
Fuel And/Or Ignition Cut
High and Low Cam Rev LimitsLow cam rev limit doubles as a cold limit
High and Low Load VTEC Engagement RPMsSeparate engagement RPMs for low and high load
TPS threshold decides low/high loadThis option decides whether to use the low or high load engagement RPM
Minimum load for engagementThis option only allows VTEC to engage above the specified load
Disengage below minimum loadWhen VTEC is engaged this option determines whether or not to disengage below the minimum load or disengage below the set engagement RPM
Minimum Speed
Minimum ECT
VTEC DisableFor Non-VTEC setups
VTEC Speed Threshold DisableAllows VTEC to activate at launch or on setups without a VSS
VTEC Temperature Threshold DisableAllows VTEC to activate while the car isn’t fully warmed up
VTEC Pressure DisableFor setups without a VTEC Pressure switch
VTEC Error Check DisableOnly suggested for race vehicles
*Corrections
New and old injector size Can be used with the overall trim to rescale for new injector sizes
Overall Fuel Trim Globally applied fuel correction
TPS Tip-In Fuel Trim Correction to accurately tune TPS Tip-In for different size injectors and different setups
Cranking Fuel Trim Fuel correction for Raw Cranking Fuel Maps
Post Start Fuel Trim Correction for fuel delivered immediately after startup
Adjustable ECT vs Raw Cranking Fuel Maps Used to determine how much fuel is used to start the engine
Adjustable ECT vs Fuel Enrichment Maps Used for cold start enrichment
Adjustable ECT vs Ignition Correction Maps Used for cold start correction
Adjustable IAT vs Fuel Enrichment Maps Complete fuel correction for weather changes
Adjustable IAT vs Ignition Correction Maps Ignition correction for intake temperature
Adjustable Gear Based Fuel Enrichment Maps Allows balancing of air/fuel ratios between different gears
Adjustable Gear Based Ignition Correction Maps Can be used as an aid for traction
Adjustable Idle Ignition Corrections
Adjustable Ignition Limitations For Ignition Maps
Adjustable Ignition Dwell Control
Adjustable Tip-In Ignition Corrections
Adjustable Individual Cylinder Fuel Trim Allows adjustments to fuel to obtain equal individual cylinder EGTs and more
Injector Battery Compensation Allows adjustments to fuel based on battery voltage
*Idle
Target Idle
ECT vs Target Idle mapsFully adjustable ECT and target idle values for the startup idle maps
IACV Duty Cycle AdjustmentAllows adjustment of IACV duty cycle to help you reach your target RPM
*AC Cutoff
Above RPM
Above TPS threshold
Idle RecoveryDisengages the AC clutch below this RPM to help regain control over a low idle
*3-step
Activation by MPHNo need for a clutch switch!
Activation by TPS thresholdRev until any RPM you choose, cross the TPS threshold and it holds that RPM
Activation by switch/clutch switchCan be used to turn 2-step on/off or used as a clutch input
MPH threshold for 2-stepCan help limit you off the line to keep traction under control
Ignition Retard/Fuel EnrichmentAllows you to build boost off the 2-step
TPS threshold for retard/enrichmentAllows you to pre-stage on the 2-step before building boost
Full Throttle ShiftHolds the target RPM during shifts. Requires use of a clutch input
Selectable clutch switch inputSeveral inputs to choose from to fit what’s available
*Outputs (2)
Activation InputNot required for activation but can be used as an on/off switch
Activation OutputSeveral outputs to choose from
Minimum RPM
Maximum RPM
Minimum Load
Maximum Load
Minimum speed
Minimum Throttle Position
Minimum Intake Air Temperature
Maximum Intake Air Temperature
Minimum Engine Coolant Temperature
Maximum Engine Coolant Temperature
Ignition Retard By RPMRetards ignition while activated
Fuel Enrichment By RPMAdds fuel while activated
Switch maps on activationAbility to use secondary maps to completely tune for nitrous
Disable on FTL/FTS
Disable if MIL code
*Boost Control For use with dual, tri, and quad stage boost controllers
Activation InputNot required for activation but can be used as an on/off switch
Activation OutputSelectable outputs for each stage of boost
Minimum RPM
Minimum speed
Minimum Throttle Position
Boost CutKeeps you from going over a determined safe level of boost
PWM Based Boost Control
Variable Frequency For Multiple Solenoid Types
Quick Spool Duty Cycle And Load SettingAllows you to hold a specific duty cycle until the load condition
Set Duty
Boost By Gear
Boost By Gear vs RPM
Low/Hi Boost Switch Input
*Fan ControlAllows full control of what temperature the fan is activated
Activation Output
Minimum Engine Coolant Temperature
Maximum Speed
*Switch Maps
Flexible Dual Map SetupPrimary and secondary maps can be setup to use MAP or TPS as load reference, Load and RPM breakpoints can be completely different. Can be used for extending load points/rpm breakpoints, alpha-n scaling, pump/race tunes, etc
Activation InputNot required for activation but can be used as a switch between the different maps
Minimum RPM
Minimum LoadOptional setting, can be disabled. For use with maps extending onto the secondary maps
Minimum Throttle PositionOptional setting, can be disabled. For use with Alpha-N scaling for ITB tuning
Use High Cam Maps OnlyCan be used to tune VTEC setups using one set of maps only
*Anti-Theft
Required InputsCan require multiple inputs to be set or unset
Optionally Required CodeCode is entered via presses of the TPS and Brake Pedal
Valet/Fallback ModeAllows vehicle to start with adjustable rev limit as valet or fallback for Anti-Theft
*Closed Loop Control
Full Wideband SupportWorks with full 0-5v scale
Target O2 VoltageCan be changed to set target closed loop a/f
Disable Closed Loop Above LoadBeneficial to small turbo and supercharged setups that build boost even at partial throttle
Other ConditionsConditions for ECT, IAT, and RPM
Adjustable Voltage ErrorDisables closed loop in the event of sensor failure
Disable Closed Loop Error Option
*Sensors and more
Disable Knock Sensor
Disable Injector Test CircuitryMany EDM/JDM ECUs do not have this
Disable BARO SensorMany EDM/JDM ECUs do not have this
Disable ELD
Disable O2 HeaterAllows use of 1 wire O2 sensor or no O2 sensor if Closed Loop is disabled
Disable IACV ErrorFor vehicles that don’t have an IACV hooked up
Disable IAB
IAB Activation RPM
MAP Sensor SupportSupport for a wide range of map sensors from stock up to 5 bar and beyond via custom map settings
Sensor AdjustmentsAllows fuel, ignition, and PWM duty cycle to be altered based on a 0-5v analog input
4 Programmable Analog InputsAllows logging of any 0-5v sensor. Breakpoints are fully configurable.
*Extras
Service InputAllows you to change the service input to any other input or none at all. This frees up the service connector to be used as a switch for one of the other options. With "none" selected as the input, codes are shown with the car off key in the on position with the throttle over 65%
Clear Codes With The Brake PedalIf you wish to clear codes in memory you can press the brake pedal while checking your codes to clear them from memory
Adjustable Fuel Prime Time
MIL Shiftlight Per GearActivates the MIL at the specified RPM
Adjustable Deceleration Fuel CutLoad, Speed, and TPS dependent
Lock Ignition TimingLock ignition steady to set ignition timing
Injector KillTo kill the engine without keying off