This is the PRE DPF oxygen sensor, located up towards the top of the engine next to the first Turbo. Its job is to measure oxygen levels in the exhaust gas, sending critical data to the engine computer to maintain the correct air-fuel mixture. A faulty or contaminated sensor sends incorrect signals, leading to poor performance and fuel economy. Ignoring a failed oxygen sensor can cause a check engine light, failed emissions tests, and potential long-term damage to expensive DPF components.
Please check vehicle fitment to confirm compatibility with your vehicle. Please contact us with your VIN details if you require further assistance to confirm fitment.
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