I have the above trouble codes My OBC reader identifies these as, I wondering if the indicate 3 problems or all point to one. Also, what that problem or problems might be:


P0071: System too lean bank 1
P0100: Mass or volume air flow circulation malfunction
P0110: Intake air temp (AT) circuit malfunction




Recently the smog test center had given me P0101 (I think), I cleaned the MAF (which did not appear particularly dirty or damaged). The CEL came back on and I got the code above codes.


(Don,'t know weather this has anything to do with anything but according to my OBCII software there are some zero voltages of “0v.” on 2 of 3 “sensor short term fuel)


Regards, PK


Hello,

Replace MAF clear codes and all will be well.

These are the meeaning of the following engine codes.

P0100 Mass or Volume Air Flow Circuit Malfunction
P0110 Intake Air Temperature Circuit Malfunction
P0171 System Too Lean
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Thanks,

It was the maf.

Regards, PK