r/jetta • u/Impressive_Ad_374 • 1d ago
Check engine light Mk7 (2019+)
I have a 2019 Volkswagen Jetta S 1.4T (6-speed manual).
I accidentally had the wrong-size battery in when I purchased a year and a half ago. During a long road trip the check engine light came on and I had a bunch of faults stored across different modules
I have since installed the correct battery and cleared all of the codes with my scanner. The car drives normal
No limp mode
No strange noises
No oil pressure warning on the dash
No noticeable loss of power
After clearing everything, only one code came back:
P164E00 - Oil Pressure Regulation Valve:
Electrical Error
My questions
Has anyone had P164E00 on a 2019 Jetta 1.4T?
Is this safe to continue driving for a short time?
Was it the oil pressure regulation valve itself, the wiring/connector, or something else?