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    Looking for emissions parts for your Porsche 911, 928, 944, 964, 996, 997, 991, Boxster, Cayman or Cayenne? At Vertex Auto we have everything you need for emissions system including Air / Smog Pumps & Filters, Knock Sensors, Oxygen / O2 Sensors, Oxygen Sensor Extensions and much, much more!
     Oxygen Sensors are essential to maintain a smooth and efficient running engine. Generally they are mounted in the exhaust manifold to monitor the amount of unburned oxygen that is in the exhaust. Monitoring oxygen levels in the exhaust is how the computer determines the fuel mixture. If the fuel mixture is burning rich (less oxygen levels) or lean (higher oxygen levels). A faulty O2 sensor can cause the engine to run very poorly and will often trigger the check engine light. Oxygen sensors are relatively easy to replace and quite affordable. We offer a full line of oxygen sensors in OEM brands such as Bosch. Ordering is easy and straightforward, but if you'd rather speak with one of our Porsche parts specialists, give us a call on our toll-free line 1-866-668-0660 or Contact Us right now.