Can anyone tell me what this code is?

 

By the way I have a 2.7 t.

 

Post catalyst fuel trim system too lean bank 1
thats what i found from google but im not sure if its correct.....try clearing the DTCS and see if it come back up again

 

Just had them cleared last Friday and nothing has come back yet. I guess we'll see.

 

Well the damn thing came back. Anybody have any ideas as to what that code is?

 

lean running condition can be caused by many things.

boost leaks and MAF sensors are common.

 

Well I just cleaned the MAF about a month ago so it's probably not that. I'm going to do a leak test soon. If there isn't a leak any thoughts on what might be causing it? BTW APR ecu, diverter valves, bi-pipe, awe intake are really the only mods I have on the engine.