My 2010 V6 Mustang occasionally stalls at low speeds and when stopped in traffic.
The first occurrence triggered a Ho2s DTC Code , replaced that with a new denso sensor but the issue persisted .
The second occurrence was at a drive thru the car stalled multiple times I had to rev it and throw it into drive to get it moving it was driving in limp mode and gave a P0401 DTC Code for the EGR
I Cleaned the mass air flow , DPFE , and throttle body it improved but remained persistent again.
Since then I've replaced the spark plugs for new motorcraft plugs and it improved again slightly.
Any trouble shooting recommendations , the p0401 didnt come back after resetting and cleaning the MAF and Throttle Body as well as the DPFE sensor.
But if its a suspect I can also replace or clean it .
The first occurrence triggered a Ho2s DTC Code , replaced that with a new denso sensor but the issue persisted .
The second occurrence was at a drive thru the car stalled multiple times I had to rev it and throw it into drive to get it moving it was driving in limp mode and gave a P0401 DTC Code for the EGR
I Cleaned the mass air flow , DPFE , and throttle body it improved but remained persistent again.
Since then I've replaced the spark plugs for new motorcraft plugs and it improved again slightly.
Any trouble shooting recommendations , the p0401 didnt come back after resetting and cleaning the MAF and Throttle Body as well as the DPFE sensor.
But if its a suspect I can also replace or clean it .
Feb 8, 2026 at 12:18 AM
