Denso 234 9015 Fuel Ratio Sensor Review

This was a perfect addition to my 2004 Subaru Forester XS. This is the OEM part of the sensor on the front of the transmitter. Two functions are assigned to this sensor. One is the heater, which helps the sensor do its job while the exhaust gases heat up, and the other is the actual sensor, which sends information about the air-fuel mixture to the on-board computer. If the preheat function has failed (which it often does), the vehicle will function normally after warming up a bit. When the…

I just installed it on my 2004 Subaru Outback and it works great; almost identical to the original part, only 2 cm longer. I already repair a head gasket ($$$) and my mechanic charged me $475 for this repair so I saved $375 by doing it myself. get there with the Outback 04, but the fix is pretty easy. I highly recommend using the PB Blaster on the old sensor because I had to use insane brute force to get the shaft loose. All you really need is a good 3/8" ratchet and an O2 sensor repair kit…

Recently my 2005 (naturally aspirated) Subaru Baja Sport had a check engine light on. After seeing code P0030 and verifying with a multimeter that the old AF sensor heater circuit was not working, I found this part and was encouraged by the other reviews. After installation my check engine light went out and my car is still running great. Tips: To get to the front AF sensor, I removed all the air intake pieces between the scoop at the front of the hood and the back of the hood. air filter box…

I drive a 2003 Subaru Baja and recently noticed on my dash that my 'Check Engine' light was on. After having the engine analyzed at the dealer, I was told that I needed to replace the "upstream" oxygen sensor. They charged me $215 for the part and another $250 for the installation. OH! I gave up selling services and figured I'd try to do this repair myself. After all, it can't be brain surgery. After extensive research on the internet, I found out that DENSO is the OEM for Subaru's own oxygen…

Best online price ($99 at the time) for original OE sensor, but connector does not match end on cylinder block side (ie not directly). You should always use the Denso brand for an intake air/fuel O2 sensor, but I assume this is part of the aftermarket and I do not recommend buying Denso sensors from Revain. He cleared the DTC P0030 after connecting all 4 wires after the cylinder block side connector, but it definitely doesn't fit directly and is difficult to work with (hence 2 stars). DIY Tip…