Quote:
Originally Posted by rjahl
Quote:
Originally Posted by Spitfire007
I'm in NYC traffic, true, but I'm struggling to get 16-17mpg where I used to get 19.
I look at the pedal the wrong way and that little needle gets buried on the 12mpg.
Bob at BPC says they is no fuel trim with the tune.
I'm struggling to understand why my gas mileage got so bad since I plugged in the DISAs.
Gas mileage was fine when the tune was installed but the DISAs weren't plugged in.
Doesn't smell like gas, just seems like a guzzler.
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That does seem low. But remember the extra torque developed with the Disa valves does not come free. If you are accelerating faster at all, you will burn more fuel.
I'm a high mileage guy, long commute and ran the car for extended times with stock 215hp then three stage manifold, then stock 330ish tune and several custom tunes.
Nearly no change in my steady state fuel economy.
If you mileage is off I'd look for another cause.
BTW, you do have the disa valves connected to the correct cable?
Your car is an Automatic correct? Have you tried flashing the 330 transmission file? |
Car is a 6MT
09 328i 91000 miles. No codes no CELs.
It has a BPC 3 stage IM tune.
I barely touch the gas to move and that needle buries itself to the right...
Could not connect the cables to the IM any differently. One long and one short only reach the valves one way...
Taking the car on a long road trip tomorrow. Will see how it does with more highway driving I guess.