Fuel injection codes for EX250K

The EX250K is the fuel injected version of the 2008+ Ninja 250, available in most of the world, excepting N America. This will show you how to find and read any error codes which you may get for the FI system.

First of all, you should get a Service Manual. It's the best source of information on your bike. The charts we show here will enable you to diagnose your problem, but in order to do the work you're going to need the manual. And remember, nearly everyone active in this club has a bike with carburetors.

FI Light Normal Operation: Ignition switch turned to ON, the FI light turns on and goes off after 2 or 3 seconds.

To read the code, if any: ECU pin 18 is self-diagnosis terminal; color Y/BK which goes to a Kawasaki Diagnostic System Connector.

This connector has a Self-Diagnosis Lead which is Yellow and under your seat.

Dealer Mode 1 = code right now. Dealer Mode 2 = stored codes, usually what you want

long (~1 second) and short (~0.5 second) blinks of FI light tell you the code

long light blink are values of 10 short light blink are values of 1

Example sequence: long blink + long blink + short blink = 21

If there is more than one code, lower is displayed first and then higher numbered codes which then repeat.

It's a single yellow wire, found under the front seat with a female bullet connector. You hook up a wire to that and to the battery ground to get into Dealer mode. They just call that wire an odd name to make it confusing. Roll Eyes

The info is fairly self explanatory from the service manual pages.... put the disclaimer on there that if it doesn't make sense when you follow along, then perhaps it's best to ask someone with more wrenching experience or take it to a dealer/mechanic.