Need help check engine light on
Thread Starter
Teching In
Joined: Apr 2018
Posts: 19
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From: Castro valley ca
Need help check engine light on just bought a 98 ws6. And the check engine light is on I thought it might have been the spark plugs but i changed them and that wasn’t the problem
p0131 bank 1 sensor 1
po151 bank 2 sensor 1
It seems to idle fine and cruising on highway is fine but when I give gas it fills like it pudders or not getting enough gas.
p0131 bank 1 sensor 1
po151 bank 2 sensor 1
It seems to idle fine and cruising on highway is fine but when I give gas it fills like it pudders or not getting enough gas.
TECH Fanatic
Joined: Dec 2017
Posts: 1,469
Likes: 267
From: Bossier City, Louisiana
Those are both related to your oxygen sensors. Check the wiring at each sensor. You might need to replace them though let's see what others here say first. My wife used to buy cheap gas at Valero and Citgo and had trouble with O2 sensors but not any more once I convinced her to buy a Top Tier fuel. Yes, the better dead dinosaur fuel juice costs more but its better for the vehicle. Pay now or pay later and go through some hassle.
Rick
Rick
Thread Starter
Teching In
Joined: Apr 2018
Posts: 19
Likes: 0
From: Castro valley ca
Those are both related to your oxygen sensors. Check the wiring at each sensor. You might need to replace them though let's see what others here say first. My wife used to buy cheap gas at Valero and Citgo and had trouble with O2 sensors but not any more once I convinced her to buy a Top Tier fuel. Yes, the better dead dinosaur fuel juice costs more but its better for the vehicle. Pay now or pay later and go through some hassle.
Rick
Rick
Joined: Nov 2001
Posts: 34,643
Likes: 2,571
From: Schiller Park, ILL Member: #317
These are low voltage codes for both front O2s. You probably need to replace both forward (pre-cat) O2 sensors. Either that or, as mentioned above, there could be a wiring issue somewhere in the harness for the front O2s.
Spark plugs aren't going to be the issue here.
Spark plugs aren't going to be the issue here.
Thread Starter
Teching In
Joined: Apr 2018
Posts: 19
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From: Castro valley ca
Joined: Nov 2001
Posts: 34,643
Likes: 2,571
From: Schiller Park, ILL Member: #317
Not that I can think of, other than perhaps some sort of PCM failure - but then I suspect you'd have some other codes and/or major operational issues as well.
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