miller maf effect on obc?

[livetheride]

I installed the miller maf with 19lb injectors on my m20 and now my obc is losing it's mind. telling me I'm getting 31 mpg and that I have 29.5L left with a range of 280 miles, but my odo says I drove over 220 miles already.. I'm going to fill up tomorrow and see how much fuel i've used.


Anyone have this issue before? Any reason this would happen?

[widebodye30]

I will be installing mine this weekend lets see what happen with the setup:)

[Adrian_Visser]

It isn't the MAF that is screwing up the OBC calculations it is the 19lb injectors. The OBC calculates your range and fuel economy by measuring the duty cycle (time held open) of the fuel injectors. Now that you have larger injectors they aren't open as long and the OBC thinks less fuel is being injected.

[sonnyqm3]

I have a Miller maf for sale for $300 shipped.