Reclibrate ECU
01-12-2005, 07:51 PM
#1
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Reclibrate ECU
I have a 454 mag EFI which I have changed the exhaust system from stock to Eddie marine thunder system and stock flame arrestor to a hardin marine XS serries. Do I need to have the ECU re-calibrarted, if so who would you recommend.
01-12-2005, 08:10 PM
#2
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Re: Reclibrate ECU
I had the same motor with the same mods. I found that adding an adjustable fuel pressure regulator took care of the slight lean condition that the aftermarket exhaust caused. There is no need to re-map the ecu. Just bump up the fuel pressure a couple of pounds to about 43#. I also had an MSD6m-2.
Last edited by Vinny P; 01-12-2005 at 08:16 PM.
01-12-2005, 08:12 PM
#3
'05 Concept SF23
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Re: Reclibrate ECU
You should not have to have your ECU recalibrated. If your transom had some black on it you should have a cleaner transom now. Murc builds these motors rich anyway.
01-13-2005, 09:18 AM
#4
Re: Reclibrate ECU
I would call Mark at http://www.precisionmarine-efi.com/ and see if it needs a reprogram. He will be honest with you and helpful over the phone .
Rob
Mark
Phone: 504.469.7463
Fax: 504-469-7418
Email: [email protected]
Rob
Mark
Phone: 504.469.7463
Fax: 504-469-7418
Email: [email protected]
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