[davidpaul]

I've ordered a EJK controller for my Z8 can anyone who has one fitted already let me know what settings work for you, especially if you've set it up with a AFR gauge

[Jogon30]

Ok I will try to explain what I was told! By ejk staff.vthe green setting will make no difference so don't mess with it! The yellow I left alone set at 2.5 which the moto  is rich from the factory the next setting red which is at 2 now you might think more red more power wrong! It's like jetting a 2 stroke if you ever had. Air, main jet and neddle! You have to find a setting that will work perfectly for you and with electronic fuel injection altitude don't make a difference the 02 sensor will fix this issue I would run it as it comes from ejk and go from there. I bet you will only have to go up or down a few on the pump. Yellow green.

[NMKawierider]

Yikes..

[Jogon30]

Yikes..

lol it's a bit,!

Or maybe in wrong lol thanks nmkawi for makeing me 2nd quess lol but i think I'm on the right track.

[Hrc630]

From my testing on the dyno, the best result is at 13.1 ar.

[davidpaul]

I've been reading up on the EJK and it does suggest that  OXYGEN SENSOR BYPASSES are used, does anyone have more info on this subject ?

The following has been copied from there web site



ADDITIONAL STEP FOR O2 SENSOR EQUIPPED VEHICLES

 A number of newer vehicles implement the use of narrowband O2 sensors to help target a desired air/fuel ratio (AFR) for the engine to operate at. For racing and performance scenerios the O2 sensors must be bypassed in order to allow for complete range of tuning. The purpose of bypassing the O2 sensors is to allow the vehicle to run in open loop mode where fuel adjustments can be made freely. When the vehicle is using the O2 sensors to make fuel trim calculations it is said to be in closed loop mode. Attempting to make fuel adjustments while the vehicle is in closed loop mode can create erractic drivability as the stock system continually tries to trim back to the desired AFR.

How to interface with the O2 sensors is different from vehicle model to vehicle model. The goal of properly bypassing the O2 sensors is to not throw an engine code and allow the fuel to be freely adjusted. Some vehicles require the O2 sensor connections to simply be disconnected. Some vehicles require an O2 bypass module to be plugged into the stock O2 connections. And still other vehicles have additional connectors on the controller harness to plug into the O2 sensors similar to installing onto the injectors. If your vehicle is equipped with O2 sensors then be sure to find out how you are suppose to interface with them. This information can be found by browsing to the particular product for your vehicle.

For emission controlled vehicles the O2 sensors can not be bypassed or disconnected in anyway. Be sure to check your state or even country laws dealing with emission regulations.

[davidpaul]

Currently there's no by pass plug for the Z8 as it's not deemed necessary at this time but if you need to adjust the green band both O2 sensors need to be disconnected  (will show an error code)