Progressive Controller

DevilsOwn Progressive controller injects water/methanol according to any 0-5 Volt sensor signal. Our sensor of choice would be a MAP sensor. Although Maff, Egt, Tps, and some O2 sensors can be used if they are 0-5 Volt. If your engine already has a boost rated MAP sensor then select the proper controller by matching its bar rating to the bar rating of your map sensor. Then iinstallation is as simple as taping into the signal output wire of the MAP sensor. Factory non boosted engines map sensor do not read boost and thus are incompatible.

If your vehicle does not have a MAP sensor then you will need to purchase a MAP sensor that measures boost. DevilsOwn has readily available 2 Bar Map sensor and 3 Bar Map sensor along with wire harness connector. If you need a pin-out of your MAP sensor to identify which wire goes where, give our tech line a call.

Controller General Operation:

Map voltage is read and converted to a boost value
Pump duty cycle is calculated based on dial settings and slope

When boost PSI reaches the START setting the pump will come on with a 15% duty cycle
It will ramp up to 100% as boost approaches FULL setting.
The pump voltage percentage will increase with a 0.2 pound increase in boost.
This means the voltage will step up 5 times over an increase of 1 PSI making a very linear response curve

For ease of adjustment, each dial has 21 settings that are incremental
There is a setting for every hash mark and another setting in-between each
Having the arrow close to a setting will provide the exact setting.

For example the 12 o'clock position on the START dial of a 2 BAR unit is a PSI setting of 7
It will also be a 7 if the arrow is 6 degrees to right (or left) of 12 o'clock
once it is beyond half way to the middle the setting will be 7.5PSI
This allows the user to easily set the unit to exact values without having to be fussy with the dial

For reference the Dial settings for each version are as follows:
If the FULL setting is set to a lower PSI than the START setting, the start setting will be ignored and the pump will switch on to 100% when PSI is above FULL setting and will switch off when it is below the FULL setting.


In order to prevent loading down the MAP sensor signal, the voltage input to the controller is left floating. This means that tapping into the stock MAP sensor that is connected to your cars computer will not effect the MAP voltage.

However, if the MAP input wire (green) is left disconnected, sampled voltage will be erratic and therefore pump output voltage will be erratic.

LEDs:

RED - power led - It will be illuminated anytime there is power applied to the pink wire and the black wire is grounded.

GREEN - This led will light up proportional to pump output voltage, it will turn on dim and brighten as the pump reaches 100%

YELLOW - This is the Status led

On power up the unit will blink the yellow led indicating what BAR setting the unit is setup for.

2 blinks is 2 BAR
2 blinks & 1 fast blink 2.5 bar
3 blinks is 3 BAR or voltage

During operation
It will come on solid in normal operation when the output voltage to pump is at 100%.
It will stay on until output drops below 95%
This prevents the light from fluttering if the boost is hovering around FULL.

It will blink a steady rate when the unit is faulted to let you know if something is wrong.

Fault:
The controller will go into fault mode if
- excessive current draw
- fault in the pump circuit
- controller overheat
- pump wired incorrectly

In fault mode, the controller will shut off the output to the pump and will flash the yellow (FULL/Diagnostic) led. The controller must be powered down and the fault condition must no longer exist before the controller will resume normal operation.

Open circuit conditions are not monitored by this controller
This is because many alcohol/water injection pumps have a pressure switch to modulate max pressure. During normal operation the switch will open and close. When the switch is open, no current will flow to the pump. Therefore, it can be normal for a zero current condition when the controller is telling the pump to run.

Input voltage 10-15v
Input current

Standby 60ma
100% duty cycle 10A