GEN 1 Do new MAF sensors need to be calibrated?

[Gryphon313]

I installed a new MAF sensor (Motorcraft) in my 2012 the other night. The next day I drove it to work (30 miles) without issue. It sat in the parking garage for 10 hours and when I left the garage, the check engine light came on. It didn’t seem to be running any different, so I drive home and pulled the codes with ForScan. It had a P0111 (indicating that the IAT reading was out of the expected range) and a P0128 (indicating that the engine did not reach operating temp in the expected time).

Obviously, the new MAF sensor is the primary suspect as it was just installed. I read that a P0128 can show up concurrently with the P0111. I cleared the codes and let it sit overnight. The next day I let it idle for about 20 mins and took it to work. No issues. It sat for about 2.5 hours and I drove it home. It threw another P0111, so I hooked up ForScan and looked at the IAT PIDS. At idle in 39 degree weather it was showing an IAT of 188 degrees. Not good. I reinstalled the old MAF sensor and it was reading an IAT of 55 degrees in 39 degree weather.

Question is, did I get a bad MAF sensor, or do I need to do something to calibrate it for the PCM? I really don’t want to clear the KAM again because I just got the truck running and shifting well.

Thanks,

Brad

 

[icecoldak]

No calibration required on those!! Sounds like you got a bad one!! especially after you put in the old one and it was vastly diff reading!!

 

[FordTechOne]

Be sure to validate that you got the correct part number before replacing it again. Ford Parts catalog is showing Motorcraft AFLS165 for F-150 with the 6.2.

 

[Gryphon313]

Be sure to validate that you got the correct part number before replacing it again. Ford Parts catalog is showing Motorcraft AFLS165 for F-150 with the 6.2.

 

[FordTechOne]

View attachment 383816

Where did you purchase from? The Chinese have been selling fake Motorcraft parts on Amazon, eBay, etc. Usually the box looks like the attached image.

 

[Gryphon313]

Where did you purchase from? The Chinese have been selling fake Motorcraft parts on Amazon, eBay, etc. Usually the box looks like the attached image.

Amazon. Could be a counterfeit for sure. The little element that is usually red colored is black on this one. I already set up the return. Fool me once…

 

[Vash]

@Gryphon313 Make sure you order an item that’s shipped and sold by Amazon and not just one of their marketplace sellers. Although, I prefer ordering from Rock Auto, Tasca Parts, or a local dealer if I’m not in a hurry.

 

[Gryphon313]

I normally go with Ford Parts Giant. I was being impatient and it burned me. Fortunately it’s Prime. The old one is working fine for now.

Thanks for the input Gents.