Getting the Following Codes when I scan my car's computer with the OBDII Scanner

P1131
Manufacturer Contrl
Fuel Air Metering

P1151
Manufacturer Contrl
Fuel Air Metering

P0171
System Too Lean
(Bank 1)


I just replaced my air filter on Labor Day Weekend (that Sunday specifically), and the old filter was really nasty, so I'm thinking that might have something to do with it? I only got to drive it for 3 days after I changed it, because I ended up getting hurt at work (broke my shifter arm) and haven't been able to drive.

Any ideas, thoughts, or diagnosis...please respond.

Thanks

Andrew

 

check your MAF... it's probably clocked funny or not sealed or not securely plugged in.