EJK Troubleshooting and Frequently Asked Questions (FAQ)
What base settings should I be running for my vehicle?
You have purchased an Electronic Jet Kit. Like carb jet kits in the
past, the more you modify, the more responsibility you take in getting
your fuel curve right. All controllers come pre-programmed for typical
stage 1 modifications meaning an exhaust pipe change and air filter
change. We recommend to install the product and drive your vehicle with
these settings before making any adjustments. After the initial ride you
should get a feel of how your bike is responding and can start fine
tuning from there as necessary.
We do not provide specific settings for various combinations of
modifications. There are simply too many combinations in existence and
we usually do not receive the feedback from customers when everything is
running right. DP now offers the SAFR diagnostic tool. We can help dial
in your vehicle if you rent the diagnostic tool. View SAFR information here.
Use the Year / Make / Model search above to find base settings for your vehicle.
NOTE: You are probably not trying to win a drag race where everything
needs to be perfect. There is a lot of room in tuning a vehicle to have
it run just fine. Every rider is perfectly able to tune their own
My fuel mileage has dropped considerably. What mode should I adjust?
Fuel mileage and achieving the best performance usually ends up being a
compromise one way or the other. Most vehicles already come a little
lean from the factory to achieve the best fuel mileage and to pass
emissions. When you start modifying your vehicle then most of the time
you lean out the fuel mixture even more. To tune your vehicle and have
it operate smoothly you will end up adding fuel. Adding fuel to achieve
the best performance tends to result in lower fuel mileage. In rare
instances though some riders may experience an increase in fuel mileage.
The GREEN mode in controllers has the largest affect on the fuel
mileage. The GREEN mode adjusts the cruising fuel where most riders
spend the majority of their time running under this condition. Lower
your GREEN mode light setting half a light and compare your fuel mileage
I'm experiencing popping. What can I adjust on my controller?
Popping issues should always start with an inspection of your exhaust
system for air leaks first and then consider fuel tuning adjustments.
The problem normally is AIR getting into the exhaust system. By adding
more fuel you can see a reduction in backfiring (popping) but that isn't
fixing the problem and it usually results in drivability and/or mileage
issues. It is always best to eliminate the cause (AIR) rather than
changing the effect by adding more fuel.
Typically, the mode to adjust on the controllers for popping issues is
the YELLOW mode. Some applications have a de-accelerating fueling mode
which can be adjusted to help cure decel popping. If the decel mode is
not present, then try adjusting the YELLOW mode up 1 light setting and
note the results. If things do not change or get worse then try lowering
the setting. If you continue to experience problems then please
navigate to your vehicle in the product section and check for advanced
troubleshooting notes. Please feel free to contact us if the problem
I see Green/Red flashing lights when the key is on. What's wrong with my controller?
NOTHING if you are just turning your key on. Please START your vehicle.
For our GEN 3 controllers if the LED in position #1 blinks GREEN and the
LED in position #8 blinks RED this means there is NO INJECTOR SIGNAL
For our GEN 3.5 controllers the combination will be GREEN at #1 and also
GREEN at #8 to mean there is NO INJECTOR SIGNAL being inputted.
This display can be seen on some vehicles when just turning the key on
to the vehicle. DP controllers are powered up through the connection to
the injector. If the key on supplies power to the injector and the
controller is properly grounded then you will see the NO INJECTOR SIGNAL
display. Without the vehicle running there should be no injector signal
The NO INJECTOR SIGNAL can also be displayed upon de-acceleration in
some vehicles where the stock ECU shuts off the injectors. This is
normal for most applications.
The most rare case of the display be shown is if an error occurred in
installation where the channel 1 connectors are loose or there is a
possible break in the harness wiring. If you see the display and your
vehicle will not start then please check the YELLOW wire from the
controller to the injector for any breaks.
How do I determine if I have a GEN 3 or GEN 3.5 controller?
You will need to inspect the following:
- GEN 3 controllers will have a black rubber plug on the back of the
unit. This plug covers the programming port for the controller. Also the
RED power wire is several locations away from the BLACK ground wire.
CARB legal GEN 3 controllers will NOT have the plug. If your unit says
CARB legal on it then you will need to inspect the wire locations.
- GEN 3.5 controllers will have the RED power wire and BLACK ground wire directly next to each other coming out of the controller.
|GEN 3 wire scheme layout
||GEN 3.5 wire scheme layout
I have a mode set at a setting of 0.5 or 8. Can I get more adjustment?
The code within a Dobeck controller may be restricting your range of
adjustment. If you have maxed out any of the modes to the left (setting
of 0.5) or to the right (setting of 8) then please contact us
about a re-flash for more adjustment. Programming for all controllers
are sent out to handle the most common modifications and keep the best
resolution for our 15 adjustments. We can certainly offer you more range
and possibly point you in the right direction.
Re-flashes are handled by our technical department through the warranty returns. The only cost is for shipping both ways.
The GREEN zone may only have a range of 0 to 30%. A light setting of 8
would mean you are adding 30% of fuel. We can certainly re-flash your
controller to change the GREEN zone to have a range of 30% to 60%.
I've purchased a big bore kit. How do I go about getting a re-flash?
Re-flashes are handled by our technical department through the warranty
returns. The only cost is for shipping both ways. Please contact us about a re-flash to upgrade your controller.
Can I use dielectric grease on your harness connections?
YES, BUT NOT ON THE ACTUAL CONNECTOR TERMINALS / PINS!!!
Dielectric grease is a NON-CONDUCTIVE, silicone-based grease that
is designed to seal out moisture and prevent corrosion on electrical
connectors. The use of dielectric grease is widely misused among shops
and end users. Dielectric grease CAN be applied on the back of
connectors where the wire enters to help seal the connector from
moisture. Dielectric grease SHOULD NEVER be applied on the terminals /
pins inside the connectors.
Watch Informative YouTube Video