Hey all-

I recently bought a datalogger that plugs into the OBDII port and records a variety of conditions (speed, throttle position, engine load, O2 Sensor(s) voltage, fuel trim, intake air temp, etc.) -- it's the Davis "CarChip E/X".

It's fun to track these variables , but I'd like to put the device to good use other than just a toy. In these times of high fuel prices , fuel economy is definitely a priority.

Is there a way I can use this data to alter the vehicle to get better gas mileage. I average 80/20 highway/city and get about 27 mpg on the '98 LS Auto. There's all kinds of info out there on re-chipping for increased horsepower, but what about economy

I'm just not sure where to start. Any thoughts? Thanks...

RH77