Question

I got the engine code P1441 on my 2001 GMC Sierra, what is the location of the sensor?

Answer 1

P01441 EVAP system flow during non-purge

There is 2 possible cause for this code the purge valve itself is stuck in the open position which would also result in a lean fuel trim code or the FTP (fuel tank pressure) sensor which is reporting the inaccurate result.

Answer 2

P1441 GMC Code - EVAP System Flow During Non-Purge Condition
Read more: https://www.autocodes.com/p1441_gmc.html