Denso 234 4294 Oxygen Sensor Ratio Review

Based on our own experience this sensor failed to properly report oxygen levels in our vehicle .The pros of this product lie solely in its ease of installation. However, the cons SEVERELY outweigh any convenience, as we found that the inaccurate readings of this sensor ultimately led to excessive fuel consumption. We would not recommend this product to anyone in need of a reliable oxygen sensor..

This oxygen sensor ratio greatly improved my automotive performance! As my tests showed it`s durable and reliable even on long drives. It doesn't require any complicated installation, and it's at an affordable price. However, it may not be compatible with older models of vehicles..

Bought two of these. Opened the first one and found I was getting a used O2 sensor. Was sent in an envelope, after opening I found the O2 sensor half from the manufacturer's packaging. The threads had an anti-seize coating and the hex had a mark clearly showing it was installed. As expected, the second was sealed in plastic packaging.