I have been having a slight backfire or miss when I get in the gas between 3k and 5k. I have un-tuned the truck and it is still there so I used my edge to check for codes and these are the 2 I got.

I'm looking for some help on what I should start to fix first.

P0104 Mass or Volume Air Flow A Circuit Intermittent/Erratic
P1000 On-Board Diagnostic (OBD) Systems Readiness Test Not Complete


(Truck 04 F150 FX4, 5.4l 47k)

Regards,

Justin

 

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