Robbed gas mileage!

[mcstark]

Ok, I'm going to change the spark plugs, get a k&n cone filter and reset the ecu. My only question is how to reset the ecu. Is it done by simply removing the battery terminals for a period of time? Anyway, what are the best spark plugs out there.

Can help you with the plugs...just go to Autozone (or other store) and ask them. I believe the owner's manual lists the appropriate type.

As far as resetting the ECU, simply disconnect the terminals and let the car sit for 10-15 minutes. I believe that is all you need to do...maybe pump the brake pedal a few times to completely drain the system. Then reconnect. It will prob. run rough for a little bit, but should self-adjust.

Just search "ECU reset," and you should get a more detailed, accurate answer.

Or you could just leave it alone...it will eventually (I'd say within a month) adapt to its new surroundings.


17 inch wheels will make a difference -- unless they're lighter than the stock wheels. Any excess bit of weight needs to be accelerated which makes the engine work more...hence lower gas mileage.

 

[neit_jnf]

2003.5 all stock soon to have 12k miles, have yet to do any maintenance except for oil changes and fuel system cleaner

I get very consistent 26-27 mpg 100% city driving (15 miles per day) with intermittent use of AC

On long highway trips cruising at 75 mph I always get over 31 and as high as 35 mpg with intermittent AC also

I guess I got one of the good ones? (thumb)

 

[+ friction]

I guess I got one of the good ones? (thumb)

Yeah...all P5 mpg threads show such disparate averages. Sort of strange.