how to repair a no ho2 s switching detected on 1988 ford ranger 2.9 liter v6

Asked by Jan 19, 2014 at 09:22 PM about the 1988 Ford Ranger XLT Standard Cab LB

Question type: Maintenance & Repair

8 Answers


What are the codes you get when testing?

code 41


Vacuum leaks at the engine or an exhaust leak in front of the o2 sensor will cause this code. The o2 sensor is doing it's job but is telling the ecm to add more fuel due to the leak. Find the leak and the light should go off.

Best Answer Mark helpful

thanks for the helpful tip


No problem. I have owned fords for years.

have had this one for 9 years i love it but just now starting to give me problems


This is minor.

i know but i just had the 5 speed trans rebuit new alt new clutch cylinder but i dont mind the truck is 25 years old i thats get the begining

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