AA and Range / Consumption

[trimegatron]

Let's just say it's optomistic enough for two vehicles:eek:

Like 650 + miles per tank!?!

It did to somewhat straighten out towards the bottom of the tank but it was still off by 100%

When my light came on I can usually look at the range and have 50 or so miles. This time it said ~100.

Is this how it will be? Or, is there a fix? Search didn't reveal anything related.

[///M3 CRAZY]

lol you need to explain yourself better. i imagine you are talking about the range function on the OBC? if so it is way off due to the larger injectors. and i have never seen a fix for it. do you really even use it?

i mean really how hard is it: drive, then idiot light, then refill. and when you refill you reset your mileage. then at the pump you can take number of miles driven and divide by the number of gallons and that gives you mpg. you cell phone has a calculator to help with that too.

[EastBayMPower]

When i got my first ride in a TT stg.2 M3, I said "holy shit man, you're getting 35+ mpg?!?!?" he said.......half that. injectors it is.

[SiGmA]

lol you need to explain yourself better. i imagine you are talking about the range function on the OBC? if so it is way off due to the larger injectors. and i have never seen a fix for it. do you really even use it?

i mean really how hard is it: drive, then idiot light, then refill. and when you refill you reset your mileage. then at the pump you can take number of miles driven and divide by the number of gallons and that gives you mpg. you cell phone has a calculator to help with that too.I'm with you on this one. I think, however, one could make a PIC board to calculate the difference and correctly display the mileage. But I would have no direct experience with that. Hopefully someone does!

[justaddcoffee]

your computer still thinks it's using stock injectors and squirting 50-100% more fuel than it realizes. i think it's kind of annoying, but just like my permantently-on ASC light, i just don't notice it anymore.

[acastillo]

My actual mileage always calcutates to ~58% of OBC indicated MPG.

[uconnr]

I have the same problem. I bought my car with the Dinan supercharger, and I get reading for about 36 mpg and am really getting close to 20 mpg. LOL I was pretty impressed when I did my first fill up and the range said 650+

I have the receipts for everything that was installed at the dealership that put in the supercharger and all the other Dinan stuff, but there is no mention of injectors. Is it safe to assume that I am running larger injectors??

[MikeE36]

I have the same problem. I bought my car with the Dinan supercharger, and I get reading for about 36 mpg and am really getting close to 20 mpg. LOL I was pretty impressed when I did my first fill up and the range said 650+

I have the receipts for everything that was installed at the dealership that put in the supercharger and all the other Dinan stuff, but there is no mention of injectors. Is it safe to assume that I am running larger injectors??

Yes. The duty cycle on the larger injectors during normal driving is so much lower than stock injectors that your ecu thinks you're hardly on the throttle if at all. Your 36mpg reading and 650 range confirms you have larger injectors.

[BMWManiac]

I get 320miles to a full tank w/o boostin and 2.93 rear end

[trimegatron]

lol you need to explain yourself better. i imagine you are talking about the range function on the OBC? if so it is way off due to the larger injectors. and i have never seen a fix for it. do you really even use it?

i mean really how hard is it: drive, then idiot light, then refill. and when you refill you reset your mileage. then at the pump you can take number of miles driven and divide by the number of gallons and that gives you mpg. you cell phone has a calculator to help with that too.

Ahh yes, my OBC!

Sure I use it. All the time infact! Ever been in a hurry and you've got to get somewhere quick - and then your fuel light comes on - but you've got to get cross town...Get my drift?

I know it's bad to run your tank low, but I've been doing it on BMWs for 10+ years without ill effects. That range calculator has saved my butt dozens of times.

Or, another good example is driving down the interstate. I like to fill up at a quarter of a tank just to stretch my legs. But, sometimes I get lower than that and I'm in the middle of no where. Let me check my range to see if I can wait to get gas as I don't really want to stop at this crappy gas station...get my drift?

[trimegatron]

I'm with you on this one. I think, however, one could make a PIC board to calculate the difference and correctly display the mileage. But I would have no direct experience with that. Hopefully someone does!

I use it so frequently that I would pay to have it corrected!!

[trimegatron]

I have the same problem. I bought my car with the Dinan supercharger, and I get reading for about 36 mpg and am really getting close to 20 mpg. LOL I was pretty impressed when I did my first fill up and the range said 650+

I have the receipts for everything that was installed at the dealership that put in the supercharger and all the other Dinan stuff, but there is no mention of injectors. Is it safe to assume that I am running larger injectors??

Without knowing the Dinan kit, but comparing it to my own -most certainly :)