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Discussion Starter #1
I have a 2008 450R and when ever i have a hard landing it will shut off and the EFI light turns on. Sometimes it wont stall and just the light will stay on for about 5 seconds then turn back off again. Do you think it is my roll over sensor or a loose wire or plug on one of the sensors?

Thanks for your help!
 

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Do check your roll over sensor and zip-tie it to secure it on the bracket...!!!

Check your all your connections for corrosion and being loose and apply dielectric grease on all your electrical connection except the ECU...

Try top simulate the hard jolt by shaking the ECU harness connection as the motor's running and see if it stalls....

repeat shaking the harness connectors at all the sensor including relays and see if you can get it to stall...???
 

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I would put money on the roll over sensor.
 

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Discussion Starter #4
well i took the roll over sensor out of the equation and it is still coming up with the EFI light but it isnt stalling (Not stalling because of new aftermarket suspension dampening the impacts)

Im starting to tear down my entire quad for a paint job so ill check all my plugs while i have it all apart! hopefully ill be able to find something.

Thanks for your help,

-Andrew
 
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