🔍 Denso 234-5090 Oxygen Sensor: Unmatched Air and Fuel Ratio Detection Review

Haven't fitted it yet but they have Bosch markings on them so they're OEM at Denso's best price. Don't pay more for the same. They are identical to OEM sensors.

Bosch junk has been a big problem all along. These gauges have been around for years and I haven't seen any indication of a check engine light. However, I am checking the plugs before the winter season as the wiring harness has not been modified to accommodate the gold contacts.

Excellent! I had problems with 2010 Cummins 6.7 O2 sensors. I'm tired of buying them from the dealer. It took me 2 minutes to swap. Let the truck warm up a bit then get under it and be careful because it's hot, break the wires and disconnect the wiring harness. If you need to cool it longer then go ahead, but for some it will be easier to break the threads when the trucks are hot. If you have a lot of rust I recommend an O2 sensor socket. I broke my 7/8 inch O2 sensor jack but could do with a…

I drove my truck 30 miles after installing the replacement oxygen sensor and it seems to have helped. No more check engine light and no more O2 sensor code. Dodge quoted me a price of $210 to replace the O2 sensor, so the Denso sensor saved me a decent amount of money. Some of the things I've learned may help others: Some cars have two exhaust paths, and those cars may also have two banks of O2 sensors. (total 4 sensors). My 2007 Dodge RAM Cummins 6.7L has only one exhaust tract with two O2…