New codes causing engine to die out when coming to a stop.

[king01]

2003 Ford Expedition 5.4 2v,

Has recently gotten code p0103 and shortly after that appeared codes p2196 and p2198,

Will rev down like shutting off when in D then kicks back up intermittently, what could be the cause?

Swapped mas air flow sensor and same issue persists.

 

[whtbronco]

Sounds like a faulty connection to the MAF sensor. Check the connector pins and if nothing there, check the wires. I suggest that the rich O2 sensor codes are likely related to the faulty MAF signal.

 

[king01]

Sounds like a faulty connection to the MAF sensor. Check the connector pins and if nothing there, check the wires. I suggest that the rich O2 sensor codes are likely related to the faulty MAF signal.

Yes, o2 codes did come after the maf, and ive checked connections and swapped another maf sensor, problem persists, haven’t checked wires tho so will do,