Unlocking Hidden Power The Essential Guide to Changing O2 Sensors

- P1135: (O2 Sensor Heater, PreCat ECU1). Summary: Removed and replaced Pre-Cat O2 sensors. Result: Check Engine Light gone. Attached is a DIY ... The new O2 sensors come with gaskets and install flush to the old plate. No welding required. To the original question: The only time I'd ... Denso 234-4168 Oxygen Sensor - Downstream Front Easy access in the front, just below the cat. I think, if I recall correctly, this is the one that requires ... You'll need a special O2 Sensor wrench to the remove it. That's not hard. The hard part is detaching & reattaching the electrical connector. It's in a tight ... They are easy enough to replace yourself, all you need are the dedicated sockets, which are available anywhere, and less than an hour of your time. In theory, it's relatively simple to replace a bad O2 sensor. They are typically connected to the vehicle's wiring harness by a single plug and ... In this video, we take you through a step-by-step tutorial on the intricate process of changing an oxygen sensor. Both connectors are designed to fit only one way so you can't get it wrong....but be sure to push then firmly together to get them completely ... O2 sensor is an emission system part. If their contention is that the sensor is good but can't be safely removed and replaced without damage ... It's really simple. Just two studs in the exhaust piping hold them in. Just take off the two nuts and unplug the wiring connector.