Question

I have a 1995 Ford Ranger 4.0L (x vin), codes (P0133, P1131, P0131) replaced o2 bank 1 sensor1. the light still on though! ????

Answer 1

P0133 FORD - O2 Sensor Circuit Slow Response Bank 1 Sensor 1
Read more: https://www.autocodes.com/p0133_ford.html

P1131 FORD - Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1
Read more: https://www.autocodes.com/p1131_ford.html

P0131 FORD - O2 Sensor Circuit Low Voltage Bank 1 Sensor 1
Read more: https://www.autocodes.com/p0131_ford.html