Ninja 300 Engine Warning Light - Kawasaki Ninja 300 Forum
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post #1 of 2 (permalink) Old 07-11-2019, 05:23 PM Thread Starter
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Ninja 300 Engine Warning Light

Yesterday when I went to start my bike, the engine warning light was on and the bike would turn over but not start. One thing I noticed is that the fuel pump did not prime when turning the key as it normally does. I left for class and came back to find the warning light gone and the bike starting up fine.

Today, I took the bike out for a short ride and was able to get the warning light to come back on. This time I was aware of how to check the error codes through the odometer and codes 24 and 25 were shown.

A search has indicated that these codes are for the speed sensor and gear position sensor respectively? My question is would an error with these sensors cause the ECU to shut off the fuel pump as it did from the day prior, or is there some other potential issue such as a bad ECU that I'm missing?

Any help or insight into this would be greatly appreciated, let me know if there are any more necessary details to add.
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post #2 of 2 (permalink) Old 07-11-2019, 06:15 PM
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I'm not familiar with ninja 300 specific issues but normally when a bunch of weird things start happening (multiple unrelated codes, things not working properly etc) the first thing to check is wiring. Make sure the terminals are clean and tight on the battery. Check and clean the connections at the ecu. Check the grounds, wires etc.
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