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I need info on my 05 Saturn Vue check engine light scan codes:

Customer Question
I need info on my...
I need info on my '05 Saturn Vue check engine light scan codes: P0137, _0138, P0139, P0420, P2270, P2271
Submitted: 5 years ago.Category: Saturn
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Answered in 1 minute by:
12/1/2011
Saturn Mechanic: Amedee, Saturn Technician replied 5 years ago
Amedee
Amedee, Saturn Technician
Category: Saturn
Satisfied Customers: 26,816
Experience: ASE certified Technician advanced level specialist. Wisconsin certified emissions state inspector
Verified
Hello!

How does the vehicle run?

If you clear the codes, which code comes back first?
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Customer reply replied 5 years ago

Vehicle seems to run fine. Has been lit for a few months...I do not know how to clear codes.
Saturn Mechanic: Amedee, Saturn Technician replied 5 years ago
SO your just looking for information on these codes?
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Customer reply replied 5 years ago

Yes, please.
Saturn Mechanic: Amedee, Saturn Technician replied 5 years ago
What size engine do you have?
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Customer reply replied 5 years ago
2.5L V6
Saturn Mechanic: Amedee, Saturn Technician replied 5 years ago
You mean 2.2 liter?
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Customer reply replied 5 years ago

Husband says 2.5L...but I will defer to your
knowledge...
Saturn Mechanic: Amedee, Saturn Technician replied 5 years ago
They only make a 2.2 liter engine and a 3.5 liter engine. One is a 4 cylinder and one is a 6 cylinder engine.
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Customer reply replied 5 years ago

Okay - just got a response from family. it is a 3.5L 6-cylinder
Saturn Mechanic: Amedee, Saturn Technician replied 5 years ago
Excellent!

P0137 is Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage
P0138 is Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage
P0139 is Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response
P0420 is a converter efficiency code.
P2270 is Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Lean
P2271 is HO2S Signal Stuck Rich Bank 1 Sensor 2

It really sounds like you might just have a bad oxygen sensor after the converter on bank 1. Just be sure the wiring to this o2 sensor checks out ok and that there is power to this sensor with the key on engine running. If so, replace the o2 sensor and clear all of the codes using a scanner or by disconnecting the battery. Chances are this will do this trick.

I hope this helps! Please don't forget hit the green accept button so that I may get credit for the time that I have spent with you. This is necessary for me to be paid for my work and get credit for assisting you. Your question will not close, and you will still have the opportunity to follow-up if needed. Leaving a bonus and positive feedback is not required, but doing so is certainly appreciated!

I do hope you are as honest with me about your vehicle as I have been with you. If you have any further questions or if you need more assistance, just hit the reply button and we can continue our conversation. Please remember, even if you accept my answer now, you can still repost or respond back to this thread at any time you wish at no further cost and I will be more than happy to continue to work with you until you are happy.

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Thanks in advance!

Best Regards

AMEDEE
Amedee
Amedee, Saturn Technician
Category: Saturn
Satisfied Customers: 26,816
Experience: ASE certified Technician advanced level specialist. Wisconsin certified emissions state inspector
Verified
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