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Hi, NB drivers! First time posting in this forum. I actually own an '88 16V Scirocco.....anyhow, my sister-in-law has a '99 NB 1.8T with the check engine light on, so she took it to a diagnostic shop. They hooked up the scan tool and told her the pre-cat O2 sensor heater had set the code. Now, I know the code could have been set due to failed wiring so I'm wondering if anyone else had had a similar problem and if it was the sensor or the wiring at fault. Thanks, in advance!
 
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