Ecm
#2
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You have to either repin the harness, use an adapter to convert it from a 3 to a 4 harness or get a new one. The adapters are not much cheaper than a new harness. It depends on what kind of shape yours is in and how old yours is as to which is the best way to go. The knock sensor is also different for the 4.
Eddie
Eddie
#3
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I assume you are talking about the Delphi MEFI3 and the MEFI4.
If you are using the 3 there is no compelling reason to make the change to the 4 unless it is fried and you can not find a replacement.
If I may be so bold, why do you want to change? The 3 can be tuned.
But if you must change re-pinning will accommodate the 4.
If you are using the 3 there is no compelling reason to make the change to the 4 unless it is fried and you can not find a replacement.
If I may be so bold, why do you want to change? The 3 can be tuned.
But if you must change re-pinning will accommodate the 4.
Last edited by tunertech; 02-23-2008 at 06:20 PM. Reason: //
#4
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You have to either repin the harness, use an adapter to convert it from a 3 to a 4 harness or get a new one. The adapters are not much cheaper than a new harness. It depends on what kind of shape yours is in and how old yours is as to which is the best way to go. The knock sensor is also different for the 4.
Eddie
Eddie
Dustin
#5
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I assume you are talking about the Delphi MEFI3 and the MEFI4.
If you are using the 3 there is no compelling reason to make the change to the 4 unless it is fried and you can not find a replacement.
If I may be so bold, why do you want to change? The 3 can be tuned.
But if you must change re-pinning will accommodate the 4.
If you are using the 3 there is no compelling reason to make the change to the 4 unless it is fried and you can not find a replacement.
If I may be so bold, why do you want to change? The 3 can be tuned.
But if you must change re-pinning will accommodate the 4.
#6
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I am not sure who told you this but there are over 1800 point so data in the MEFI 3 that can be tuned. Typically you only need to deal with a very small set parameters ie... go to http://mefituning.com/mefitable
Picture lower right and you can see a sample of the fuel map.
Picture lower right and you can see a sample of the fuel map.