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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Wed, Aug-05-2009, 07:35:51 PM   #1
sunnybono
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Default Adjust fuel consumption accuracy?

Is this possible? Assuming you know your average mpg figure under reads by 10% can you adjust this out in the computer?
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Old Wed, Aug-05-2009, 11:37:23 PM   #2
RedM3/4
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Default good question

I believe this is possible in the E36 - to a point. Example, if you put in cams and 24lb injectors in an E36M3, there isn't enough adjustment to get this far.

I've never seen it discussed or heard of it done on an E46.

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Old Wed, Dec-19-2012, 06:39:09 PM   #3
pleiku69
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Default Re: Adjust fuel consumption accuracy?

Quote:
Originally Posted by sunnybono View Post
Is this possible? Assuming you know your average mpg figure under reads by 10% can you adjust this out in the computer?
my actual mpg is about 1.7 mpg lower than indicated on info center. Can this be adjusted?
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Old Wed, Dec-19-2012, 06:45:14 PM   #4
m3 hal
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Default Re: Adjust fuel consumption accuracy?

I would ask the guys who are working on the ecu hacks. I bet the answer is yes.
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Old Wed, Dec-19-2012, 07:23:51 PM   #5
808elise
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Default Re: Adjust fuel consumption accuracy?

Since I installed my supercharger it reads 28. Not sure why it is doing that.
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Discussing Adjust fuel consumption accuracy? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)