answersLogoWhite

0


Best Answer

P1131 = Insufficient switching O2 Bank 1 Sensor 1 Sensor/lean.

Could be a B1 S1 O2 sensor going bad.

User Avatar

Wiki User

9y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What does code p1131 mean on a 1999 Mercury Mystique?
Write your answer...
Submit
Still have questions?
magnify glass
imp