hi

i have a spy f3 2021 350cc quadbike and i am getting a p2301 code. The fault code only comes while riding after atleast 1 mile and it throws engine light up and bike shuts off. If i then try cranking to start up it will just crank.

I can get it started again if i erase the fault code from diagnostics and bike will ride again for around 0.5 mile before it cuts out again. If left to idle it will stay running forever even if i rev at idle no issues.

i have replaced ignition coil, spark plug and engine wiring loom but fault still there. my quad doesn't have a CDI box, I think the ECU controls the spark and sends signal to the coil so could it be the ECU thats faulty? or is the stator? The bike only has 109 miles on the dash so like new. any help with this would be much appreciated


could there be a issue in the dc voltage system causing over voltage to the spark plug? what should i check next

thank you

 

Check the voltage across the battery with engine running at various revs. It shouldn't go above 14.5v. More than 15v can cause problems with the ECU. However I would try to find what the code means by contacting whoever sells Spy Quads. After sales service from Chinese importers can be bad but someone at the factory thought it worth including diagnostic codes on their products, so they expected their dealers to know how to read them.