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Old 08-25-2006, 02:21 PM
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Question P1134 HO2S - Code?

Can anyone tell me what this code is all about....

P1134 HO2S Transition Time Ratio Sensor 1

Any help would be appreciated
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Old 09-04-2006, 12:18 PM
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Re: P1134 HO2S - Code?

It would be helpful to post the year, model, engine size and mileage of your Skylark.



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Old 09-18-2006, 02:04 PM
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Red face Re: P1134 HO2S - Code?

Yea, sorry: 1997 Buick Skylark 3.1 V6 w/automatic & 65000 miles. No symptoms... just the code.

Sorry it took so long to respond.
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Old 09-20-2006, 08:14 PM
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Re: P1134 HO2S - Code?

DTC P1134 indicates the Bank1, Sensor1 02 sensor has an incorrect ratio.

The slow rich to lean or lean to rich response time is degraded.

Possibly a bad 02 sensor. The 02 sensor before the CAT convertor.



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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8
'02 Oldsmobile Alero GL2 - LA1 3400 V6
'99 Buick Regal LS - L36 Series II 3800 V6
'03 Honda CR250R MX - 2 Stroke 250cc
'97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold)
Timeslip 08/12/06

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Old 09-27-2006, 04:33 PM
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Re: P1134 HO2S - Code?

Great, thanks for the help, I'll just change the 02 & hope this fixes it.
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Old 01-26-2007, 05:48 PM
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Re: P1134 HO2S - Code?

Sorry for the delay in responding. Replacing did the trick. Thanx all.
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