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Discussion Starter #1
Looking to buy an 04 F-7 with no ecu and I want to see it run of course so hears some questions.
Can I use an ecu from a 06 M-6 in an 04 F-7 just to see if the sled runs? And if it works can I get the ecu flashed to work for an F-7. And also what is the difference between the different shapes on the ecu. Thanks to anyone who can answer any of my questions.
 

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a 600 ecu will plug in but dont do it it will not be compatible with your engine your guna burn it up 600 and 700 engines use different timing a fuel mapping, the different shapes on the ecu mean defferent mapping , for newer mapped ecu's look for the square for a 03 mapped ecu look for the triangle i believe that was the best mapping you could find form the factory
 

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As long as it is compatable with the plug to just start it and here it idle, You will not be causing any harm. Under load yes. Will it be running a little leaner....Of course. But your not romping on the thing.
 

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it should be fine just to idle shortly it to see if it runs. don't ride it though until you get a F7 ecu.
 
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