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VW Cat Monitor
This 2.0 BBW motor has 3 O2 sensors: a "wide-band" ahead of
the cat, a "conventional" about half-way along the cat
housing, and another conventional after the cat. Presumably
both conventional sensors are used for cat-efficiency
monitoring. 
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| Engine | 2.0 L |
| Trans | 5-speed Standard |
Vehicle Data
2004 Volkswagen Jetta GL 2.0L
| Engine | 2.0 L |
| Trans | 5-speed Standard |
Video