Edul59

yea ive seearched and well my issue that i am having is that i do get the mixture to lean code which is p171 i belieave. anyways...but the only sympton i see happening is my MPG has gone to crap. its completely horrible. if a lean mixture means a lack of fuel in the combustion chamber...what could be causing my rapid loss of fuel? a leak somewhere? i check mostly eveyrthing except the injectors.. any ideas would be great thanks.

Former User

Start by measuring the fuel pressure, checking the primary O2 sensor, and looking for an exhaust leak around the O2 sensor in the exhaust manifold.

Edul59

thanks alot ron for that screen shot!!