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Check engine light is on and falters after engine runs a little bit

Tiny
STEVEMERKLE
  • MEMBER
  • 1998 DODGE TRUCK
  • 150,000 MILES
It ran great then changed front brake lines now having trouble. Couldn't find any vacuum leaks, took it autozone they put the scanner on it and came up with two oxy sensor codes PO132 and PO138. I was told the odds of both of them going bad at the same time is rare especially after the repair. How can I tell if they are really bad and what else can cause these codes? The engine idles fine starts fine but when it gets warm and up around 50mph it sputters falters and loses power but it doesnt stall.
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Wednesday, October 16th, 2013 AT 11:13 AM

3 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
What engine does this thing have?
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Wednesday, October 16th, 2013 AT 12:00 PM
Tiny
STEVEMERKLE
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  • 2 POSTS
5.9 L
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Wednesday, October 16th, 2013 AT 3:29 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
These are both high voltage codes so someone is going to need a high grade scan tool and they are going to have to look at a lot of things to determine where that voltage is coming from. I'm afraid about all you could do yourself would be to go back over your work carefully and look for pinched or damaged wires. Make sure there is nothing causing the engine to run extremely rich because that's basically what a high voltage report is if it's accurate.
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Wednesday, October 16th, 2013 AT 3:45 PM

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