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Old 01-01-2016, 08:46 AM   #1
Ariel
 
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O2 sensor issue.. I think..

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05' 1500 4x4 long tube headers, Y pipe, cat/res delete

I've had my check engine light on for a few weeks, when I scanned it the codes were

P2096 post catalyst fuel trim system too lean bank 1
P0133 o2 circuit slow responce bank 1 sensor 1

I finally got around to changing the sensor (front driver side) and after clearing the codes I started the truck up and the check engine light came back on. I scanned it again and the code was

P0058 H02S heater control circuit high bank 2 sensor 2

I cleared it one more time but the light came back on. What do you guys think could be going on?

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Old 01-01-2016, 09:05 AM   #2
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Most likely you need to replace the rear passengers O2. There is an extensive diagnostic for it but here is where I would start.

NOTE: O2 Heater Element resistance values should be measured at 21.1 C (70 F). The resistance value will vary with different temperature values.

Turn the ignition off.
Measure the resistance between an engine ground and the (Z992) O2 2/2 Heater ground circuit in the O2 Sensor harness connector.
Is the resistance below 5.0 ohms?
If it is replace the sensor.

The heater element resistance also needs to be between 2 and 30 ohms. If it is not then you need to replace the sensor.
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Old 01-01-2016, 09:17 AM   #3
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Thanks TYSENUS I failed to mention my rear o2s were deleted.
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Old 01-01-2016, 09:22 AM   #4
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Old 01-01-2016, 03:55 PM   #5
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High voltage on a sensor often means that the element is open. This can also translate to "NOT PLUGGED IN" or broke the wire while fooling with it. I'd check the plug carefully and make sure it has a good connection.
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Old 01-01-2016, 06:16 PM   #6
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Quote:
Originally Posted by Redtruck-VA View Post
High voltage on a sensor often means that the element is open. This can also translate to "NOT PLUGGED IN" or broke the wire while fooling with it. I'd check the plug carefully and make sure it has a good connection.
Thanks we're gonna mess with it tomorrow. Ill post what we find.
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