R
Very new to the forum & thanks for having me.
i just bought a n 03 mountain cat that was switched from a carbed 900cc to an efi
the fella rode it for a bit and on a semi warm day's ride it went into idle mode, come to find the chip in the ecu fried. Searched around engine bay and found a busted ground wire. He figured it to be the reason. He bought a used ecu to ride with and did so for a half dozen rides but then rode on another semi warm day(40degrees or so) and 20 miles into it he idle moded again. He went straight to the ecu and found exact same thing. He gave up and sold it to me so i could play with it.
my initial thinking is a couple things. 1) voltage regulator is bad 2) stator is spiking. I tallked with a guy for a bit and he mentioned that regulators for efi's are more expensive b/c of the fact they do more--made me wonder if in the carb to efi swap they left the carb regulator and it is overloaded now and spiking thus burning ecu up?
its a bit wordy but i wanted to try and get as much info in as possible.
Anythoughts?
Oh yea i am in search of an 04efi 900cc ECU at this point. I will get the numbers and add them tomorrow. If anyone has a used one let me know. Might even look for a different regulator for an efi system just to make sure. If you have one of those let me knowalso!
i just bought a n 03 mountain cat that was switched from a carbed 900cc to an efi
the fella rode it for a bit and on a semi warm day's ride it went into idle mode, come to find the chip in the ecu fried. Searched around engine bay and found a busted ground wire. He figured it to be the reason. He bought a used ecu to ride with and did so for a half dozen rides but then rode on another semi warm day(40degrees or so) and 20 miles into it he idle moded again. He went straight to the ecu and found exact same thing. He gave up and sold it to me so i could play with it.
my initial thinking is a couple things. 1) voltage regulator is bad 2) stator is spiking. I tallked with a guy for a bit and he mentioned that regulators for efi's are more expensive b/c of the fact they do more--made me wonder if in the carb to efi swap they left the carb regulator and it is overloaded now and spiking thus burning ecu up?
its a bit wordy but i wanted to try and get as much info in as possible.
Anythoughts?
Oh yea i am in search of an 04efi 900cc ECU at this point. I will get the numbers and add them tomorrow. If anyone has a used one let me know. Might even look for a different regulator for an efi system just to make sure. If you have one of those let me knowalso!
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