P0138 Code
Thread Starter
Senior Member
Joined: Sep 2006
Posts: 101
From: Phoenix, AZ
P0138 Code
So I have been getting this code here and there. It comes and goes, and never stays. When it does it pulled the P0138 code
P0138 - Downstream Oxygen Sensor Maximum Voltage fault
So does this mean it's bad?
Also what would this code affect? Anything?
P0138 - Downstream Oxygen Sensor Maximum Voltage fault
So does this mean it's bad?
Also what would this code affect? Anything?
Newbie - Just Registered
Joined: Oct 2006
Posts: 7
Try Seafoam fuel cleaner before replacing sensor
I have 97,000 on my '03 and got a P1038 and before I replaced the sensor I tried Seafoam fuel cleaner (recommended by Advanced Auto) and sure enough it has enough cleaning agents in it to clear the sensors. I'd try this for $10.00 a bottle before the effort of replacing a sensor.
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Kyle Lee Cleveland
6th Generation Maxima (2004-2008)
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Sep 28, 2015 09:01 PM