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 Post subject: ECU chip?
PostPosted: Wed Mar 11, 2009 5:31 pm 
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Joined: Wed Jan 04, 2006 1:21 pm
Posts: 2142
Location: Tucson Az
what is a good company who sells eproms... I have a tmo now but want a diff one.. im running E85 and I dont think the tmo is liking it lol... or its programmed for a diff setup..not sure.. i just know I have to add like +30 to +40 on the afc to get it @ 14.7 a/f idleing cold...then when it warms up a bit I can turn it down to +10 to +15.. I dont want to leave it set at the low setting while it warms up just to be safe...(when cold @ low settings its pegging max lean)


so any suggestions opn chips will be great..thanks.



Steve


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 Post subject: Re: ECU chip?
PostPosted: Wed Mar 11, 2009 7:16 pm 
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2nd Banana
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Joined: Wed Dec 28, 2005 1:16 pm
Posts: 9369
Location: San Diego, CA.
http://www.4g61t.org/forum/viewtopic.php?f=4&t=28271

There's nothing anyone can do in an EPROM chip to compensate for E85, that's all you. The TMO chip doesn't modify fuel or timing maps either, it's strictly convenience mods like fuel cut elimination and stutter box and shit.

E85 is always gonna be a pain in the ass when the car is cold, there's not much you can do about that with a stock ECU. Get bigger injectors and have a custom EPROM made for that injector size, keep the AFC for fine tuning.


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 Post subject: Re: ECU chip?
PostPosted: Wed Mar 11, 2009 9:31 pm 
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Joined: Wed Jan 04, 2006 1:21 pm
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Location: Tucson Az
thanks man


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