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Thread: Warning light coming on rr ecu
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04-19-2006, 07:52 PM #1
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- Mar 2006
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Warning light coming on rr ecu
My warning light is coming on when i hit 8450rpm's, it comes on for a couple of seconds then intermittent. any thoughts?
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04-19-2006, 08:00 PM #2
Stock class racing ECU or regular Rotax Racing ECU?
05 or 06 ski?
u press set 5 times if it's an 05 to see if it gives an error code?
if an 06, u hook it up to BUDS to see if any active or occurred faults?
u did your knock sensor correctly?
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04-19-2006, 08:03 PM #3
Re: Warning light coming on rr ecu
Originally Posted by THE_PWC_GUY
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04-19-2006, 08:04 PM #4
Dude, you are hitting the rev limiter. You better put some pitch in that prop or you will go BOOM!
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04-19-2006, 08:05 PM #5
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i do not know which ecu i have i got it from a friend and it did not have a sticker on it. any way of knowing without sending it out to mark?
rxp 2005
and yes i did the knock sensor resistor removal correctly, it only has to cables. one insulated nad one not.
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04-19-2006, 08:07 PM #6
I can tell you now that you have the Rotax Racing ECU (old version)
You are hitting the rev limiter at 8500 allthough you are only seeing 8450 and then you get the warning light and your RPM's get kicked back to about 8300-8350.
DO NOT continue to hold the throttle WOT at these RPM's.
Add some pitch to that prop. You want to be about 8350-8400 RPM's with the stock valve train.
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04-19-2006, 08:12 PM #7
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cool, thanks for your fast response.
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04-19-2006, 08:54 PM #8
No problem Ed! Sorry i didnt call you. Just super busy right now with two RXP's in my workshop
What impeller are you running. If you arent running the 15/20 ya better get one!!!
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