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Trouble shooting issue when using a US ECU

1260 Views 3 Replies 3 Participants Last post by  BillV
I purchased a US model ECU for a 2007 gsxr 750 awhile back now after my last ECU shat it’s self on a dyno run, that was sent off to be fixed.

I have tried installing the US ECU and constantly get the c42 error code once put into dealer mode.

Everything you would expect upon turning the key happens, I.e. pump primes, lights and clocks all do the usual thing. As soon as you press the button the fire up the bike, the bike cranks but doesn’t fire up.

Anyone know what might be the issue, from what I am aware the US doesn’t use a code for a key and has no immobiliser function where as the Europe spec does.

when using the original ECU the bike doesn’t display a c42 code and fires up first time, ideally I could like to sell this on but need to know if it works first.
1 - 2 of 4 Posts
You need to add a resistor. Search for keyless ignition posts here.
Thanks for the info, I’ll take a look
1 - 2 of 4 Posts
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