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Navigation: MTune Settings > Inputs

Triggers/Home inputs

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See trigger problems for an explaination of polarity, arming voltage and so on.

 

Trigger/HOME input

 

trig sensor type

Specifies input type of the sensor.

 

trigger polarity

Specifies whether to trig on rising or falling edge of signal.

 

Arming voltages <-- only available for VR-sensors.

The voltage of the signal to be used as the trigger point.

Manual table - Manually enter the trigger arm voltages in the table.

Automatic tracking - Automatic trigger arm tracking.

 

threshold voltages <-- only available for digital sensors.

The voltage of the signal to be used as the trigger point, can be used to tune the voltages if the sensor output voltage is lower than usual.

default (3.5/2.0V) - Manually enter the trigger arm voltages in the table.

Custom settings: Rising edge threshold - The voltage over which the signal is considered "high". Should be at least 0.5V above the falling edge threshold, and preferably at least 0.5V below the actual high voltage.

Custom settings: falling edge threshold - The voltage below which the signal is considered "low". Should be at least 0.5V lower than the rising edge threshold voltage.

 

Threshold voltage example

Your highest voltage is 3V, and lowest voltage is 1V, then Rising edge threshold should be ~2.5V and the Falling edge threshold should be ~1.5V.

 

 

trigger pullup resistor <-- only available for digital sensors.

Whether to use the internal pullup resistor or not. Only available on digital inputs.

 

 

trigger decoder

 

Trigger system

See, trigger systems for a list of available trigger systems.

 

Home signal

See, trigger systems for a list of available home trigger systems.

 

Cam signal position

Specifies whether CAM signal is received before or after TDC.

 

teeth count

Specifies number of teeth on crankshaft trigger wheel INCLUDING missing teeth's.

 

missing teeth

Specifies number of missing teeth's on trigger wheel.

 

Sync window size

Specifies length of the longest hole in the CAS trigger wheel. Only visible with Nissan CAS trigger.

 

CAM signal position example

clip1177

If you are running a sequential trigger system and you detect that the system fires on the wrong engine cycle (360 degree wrong), flip this setting. (it is the same as adding 360 degree to the below first tooth angle).

 

 

advanced trigger options

 

Note: Only visible when a missing tooth trigger system i selected.

 

Advanced trigger options

Enable/disable the advanced trigger options. Only activate if you have trigger problems during crank and know what you are doing.

 

Trigger time tolerance

Adaptive cranking tolerances

Extra tolerance at low RPM

1.5 missing tooth (Renault Megane 3 RS)

 

Missing tooth tolerance

Is the required lenght of the current signal compared to the largest difference over the last two engine revolutions.

Note: 80% is a good starting point for an average looking trigger signal. The adaptive system is only used BELOW ENGINE Max cranking RPM in your engine settings.

 

 

 

trigger angle

 

First tooth angle

The actual sensor position from engine TDC.

 

Lock ignition

Enable this to lock ignition to zero and disable fuel. Used in combination with a timing light to make sure timing is correct.

 

Note: When engine is started, there is an ignition lock function which can be used to lock ignition at certain ignition advance regardless of engine RPM.

 

Disable fuel and ignition

Turns off the ignition, fuel, and fuel pump (s).

Used for testings without starting the engine.

Note: When this function is active, it completely disables fuel and ignition outputs, even the Diagnostics --> Output test features.

 

 

Supported trigger systems

MaxxECU supports VR and digital sensor (hall-effect, opto) on crank and/or cam.

 

Crank triggers

Distributor.

Missing tooth.

Missing tooth on CAM.

Multitooth + Home.

Audi 5-cylinder.

Chrystler Hemi SRT-8 (32-2-2).

Diahatsu Mira 3-cyl (3+1 on cam).

Diahatsu Mira JB (4+1 on CAM).

Dodge Viper V10 (gen 1 92-95).

Dodge Viper V10 (gen 2 96-02).

GM LS 24x, 1x cam.

GM LS 24x, any cam pattern.

GM LT5 gen I (8+1 on crank).

Harley davidson EVO.

Honda K20 (12+1) without CAM-sensor.

Honda K20A2 (with CAM sensor).

Honda K20z4 with CAM-sensor.

Jeep Cherokee (MJ-XJ 19) 18-2-2-2.

Kawasaki JET SKI 1100 DI STX.

Mazda 1.6 MX5/Miata/Eunos.

Mazda MX5 NB (99-05).

Mazda RX8, 2 (Z engines) 36-2-2-2.

Mitsubishi 4/2.

Mitsubishi EVO X.

Nissan CAS.

Nissan HR16DE.

Nissan VQ35DE .

Renix 44-2-2.

Renix 66-2-2-2.

Rover V8, 8+1 on crank.

Rover K-series (lotus elise) 1.8

Single pulse per 720 degrees (piggyback trigger).

Subaru EJ20 (early) 6crank+7cam teeth.

Subaru EJ20 (late) 36 teeth.

Suzuki 13B sequential (requires modified trigger wheel).

Suzuki G16B (ON CAM).

Suzuki GSX (with digital sensor).

Suzuki Swift 2012 - 2017 K12B.

Suzuki Swift M15A 2005 - 2010.

Yamaha jet ski waverunner (2010)

 

 

HOME/CAM triggers

On Cam (1 pulse per cam rev.)

2JZ VVT 3-teeth

N-1 on cam - Missing tooth system. N teeth and 1 removed. N teeth and 1 removed (like 4-1 and 8-1).

N-1 on cam (alt trigger point) - Missing tooth system. N teeth and 1 removed. Used where the missing gap on the cams would overlap the missing gap on the crankshaft.

N+1 extra tooth, on cam.

Alfa Romeo Twin Spark 95 - 05.

AMG C63 V8 (CAM)

BMW 6+1extra on cam

BMW M62 (rising)

Chrystler Hemi SRT-8

Ford Duratec (CAM)

Ford Mustang Coyote 5.0 V8 (CAM)

Honda CBR1000RR (2+1)

Honda K20A2

Honda F20C

HONDA J35A3

Honda L15A

LS3 CAM

MAP sensor as sync on ITB.

MAP sensor as sync on V-Twin.

Mazda MX5 NB cam trigger with missing tooth.

Mazda 2 (Z engines).

Mitsubishi Evo cam

Nissan VK45DE

Nissan VQ35DE

Porche 996 2000 variocam M96/70.

Suzuki swift 2012-2017 K12B.

Suzuki Swift M15A 2005 - 2010.

Toyota 1GR-FE/3UR-FE

Volvo long-short

Volvo T5 VVT

Volvo T5 VVT early/exhaust cam

Volvo T6 VVT

VW 1.8T (CAM)

 

 

VVT triggers

Even teeth - Wheel with evenly spaces between.

Alfa Romeo Twin Spark 95 - 05.

AMG C63 V8 (CAM).

BMW 6 + 1extra - 6 teeth with an extra tooth between two of the others. BMW S50.

BMW M62 (rising).

Ford Coyote 5.0 (V8).

Ford Duratec (CAM).

Honda K20A2 (4+1 on exhaust).

LS3 CAM.

N-1 missing tooth - Missing tooth system. N teeth and 1 removed. N teeth and 1 removed (like 4-1 and 8-1).

N-1 (alternative trigger position) - Missing tooth system. N teeth and 1 removed. Used where the missing gap on the cams would overlap the missing gap on the crankshaft.

N+1 extra tooth.

Nissan HR16DE.

Nissan VK45DE.

Nissan VQ35DE.

Volvo long-short - Two teeth per cam revolution, one long and one short.

Mazda MX5 NB (99-05).

Mitsubishi MIVEC.

Suzuki Swift 2012 - 2017 K12B.

Suzuki Swift M15A 2005 - 2010.

Toyota 3UR-FE.

Volvo T5.

Volvo T6 - Four different length teeth per cam revolution.

VW 1.8T (CAM).

Porsche 996 2000 variocam M96/70.