Front Oxygen Sensors - Intermittent Problem
Thread Starter
Joined: Apr 2009
Posts: 59
Likes: 1
From: Erie/Nottingham, Pa
Front Oxygen Sensors - Intermittent Problem I am having an issue with the front oxygen sensors on my 98' camaro. I can drive normally for over 100 miles and never set the check engine light, but If I jump on the throttle I will get a pair of codes (P0131 / P0151) for low voltage on the front two oxygen sensors. It only seems to occur above 3000rpm, possibly 4000rpm. Is there any correlation between the higher rpm and oxygen sensor issues?
I could be wrong but Low voltage on your oxegen sensors means your running lean. I would start with your fuel filter to see if its clogged. Or other possibilities could be Bad pump or bad pressure regulator. Is your car modded at all?
Thread Starter
Joined: Apr 2009
Posts: 59
Likes: 1
From: Erie/Nottingham, Pa
The only modifications to the car are a cold air intake and cat back exhaust. Over the weekend I installed a new fuel filter, up until yesterday it was running the original ac delco filter with 80k of crud.
