Code P0171

I just hooked up an Actron OBDII AutoScanner and had one code show up. The reader pulled up "P0171 - System too lean". I dumped the code, so I could wait to see if the Check Engine Light comes back on. But assuming it is still an issue and does return, does anyone out there know if this is an easy fix? If so would you mind sharing a few details on what to do?

Thanks!

 

By the way, I have a stock 2002 3.4 V6.

 

Probably a dirty MAF sensor. Do you have a K&N air filter or some other after market oiled air filter? If so, the oil from the filter may have gunked up the MAF causing the code.

 

I don't have a K&N, but I did just get a new filter. It's just a regular filter from an oil change garage. Forgive my ignorance, but does MAF stand for manifold aif flow?

 

MAF=mass air flow sensor. It should be located a few inches from the air box on the intake tube.

 

I'll check that out. Thanks.

 

Alll these years later.... I did end up replacing the MAF shortly after this orginal post, and the fix did work.

Hello Tacoma World.

 

Morning all ! I just picked up a 2000 tacoma acc cab prerunner SR5 TRD and thinking about putting a "KILL SWITCH" in it, looking through the Haynes book and can't seem to find witch wire to splice into. Any suggestions