550 Maranello ECM Programming - Ferrari Life
 
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post #1 of 6 Old 05-28-2004, 08:31 AM Thread Starter
 
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550 Maranello ECM Programming

I dynoed my 550 before and after installing Tubi exhaust (the straight thru flavor) and lost about 10 hp and 10 #'s torque. I noticed the air fuel ratio was slightly leaner throughout the rpm range.

Does anyone know how to reprogram the ecm to add the fuel back in?

Regards,

Paul
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post #2 of 6 Old 05-28-2004, 05:03 PM
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Welcome Paul.

Only the dealer has the computer to be able to adjust/reset the ECU. You may have to go back to them.
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post #3 of 6 Old 05-28-2004, 05:09 PM
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This company sells ECU chips. This should help by-pass/trick the Ferrari computer into doing what you want. Check them out:

http://www.powerchipgroup.com/choice...hipgroup%2Ecom

If you do go with them let them know Ferrari Forum referred you. I know a person there and it would be helpful.
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post #4 of 6 Old 05-28-2004, 05:11 PM
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I guessed 1999 for your year and here is the direct link to the chip for your car:

http://www.powerchipgroup.com/intera...sp?pid=Fer0011
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post #5 of 6 Old 05-28-2004, 05:13 PM
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Sorry, one last thing, I got way ahread of myself. WELCOME TO THE SITE If you get the chip please let us know how it re-dynos and if they give you a graph post it. We have some 360 graphs and a 328 graph so a 550 would be nice too.

Cheers,
Andrew
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post #6 of 6 Old 05-28-2004, 08:21 PM Thread Starter
 
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Thanks for the info. My car is a 2001, SN 126803 . I believe it is either the last or the second to last 550 produced.

Paul
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