well, i was just driving and a cel just went up from no where. i got the code read and it said it was P-0171 (system too lean). what should i change to fix this problem? thanks.

 

The MAF sensor is dirty, take out and spray the MAF sensor with something like brake cleaner. make sure its dry before installing it back in. check for a dirty fuel filter also.

 

Do not get Brake Cleaner ANYWHERE near your MAF sensor. You can find a spray cleaner specifically made for MAF sensors at your auto parts store if you need to clean yours.

Fuzionn, are you aware that this car does not have a standard fuel filter? Its part of the pump.

 

and make sure you don't touch the element itself, it is VERY sensitive.

 

FYI - our cars are not known to have a fuel filter like other vehicles. There's a filter in the fuel pump, but does not need to be changed like on other cars that have a remote fuel filter.

 

so its most likely my MassFlow Air Sensor? not a fuel problem, thanks for the help guys.

 

same thing happen to me weeks ago (po171) maf sensor.

i used commpressed air to clean it out

 

I was getting that for a while myself and my MAF was clean as a whistle and then I cleaned it again. Same code...how much for a new OEM MAF sensor? Can you get this on Ebay?

 

Sewell Lexus or PM Aligia

 

Clean your MAF. If doesn't work, maybe it's time for a new one. =)