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HO2S reading
Just worked on this CTS. Before it had HO2S codes and i diagnosed a bad 2/2 HO2S. It read 4032MV. Now the car runs fine and test drive for 20 miles no codes. My question is this- after replaceing 2/2 HO2S w/delco part. The 2/2 reading went to 0mv and then the ... Login to read more. 
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| Engine | 3.2 L |
| Trans | 5-speed Automatic (Electronic) |
Vehicle Data
2003 Cadillac CTS 3.2L
| Engine | 3.2 L |
| Trans | 5-speed Automatic (Electronic) |
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