Question

2002 Volvo V70 2.4L with engine codes P0133 and P0171. Changed map sensor also changed front and rear sensors on catalytic converter

Answer 1

Hi there,

If you are still getting this code, then the things to check next would be the fuel pressure and checking the engine for intake leaks. If you have low pressure or intake leaks then the system will report a lean condition and it will affect the way the engine is running.

Answer 2

P0133 Volvo Code - O2 Sensor Circuit Slow Response Bank 1 Sensor 1
Read more: https://www.autocodes.com/p0133_volvo.html

P0171 Volvo Code - System Too Lean Bank 1
Read more: https://www.autocodes.com/p0171_volvo.html