Hello. I’ve been fighting a CEL for my B2S2 for a few weeks. Would love some more input. I had another thread but couldn’t figure out how to edit. This one has more info and pictures and video.
In the video, Car is warmed up @ idle. Long Term Fuel trim is black and red lines, o2 voltage is yellow & blue. I changed out sensor with a new Denso, same result. Ordered another new Denso thinking I got a bad one. Same result. On the test drive the fuel trim is about 12-15% off from one bank to the other. B2S2 voltage stays at .8v almost the whole time, although sometimes it does return to .02v when coasting.
Here’s what I have done so far.
-Cleaned the MAF with maf cleaner
-Checked spark plugs and coils in bank 2
-Cecked b2s2 wires for continuity @connector to ecm
-Replaced o2 sensor with new Denso two times
-Air filter is clean
-Voltage on both upstream sensors is around 3.1v
-Catalytic converter temperature is same on both sides
The LX470 is a MY2006. I have a 2000 LC so I can swap parts from one car to another if parts interchange. Just tell me what to try.
YouTube videos
In the video, Car is warmed up @ idle. Long Term Fuel trim is black and red lines, o2 voltage is yellow & blue. I changed out sensor with a new Denso, same result. Ordered another new Denso thinking I got a bad one. Same result. On the test drive the fuel trim is about 12-15% off from one bank to the other. B2S2 voltage stays at .8v almost the whole time, although sometimes it does return to .02v when coasting.
Here’s what I have done so far.
-Cleaned the MAF with maf cleaner
-Checked spark plugs and coils in bank 2
-Cecked b2s2 wires for continuity @connector to ecm
-Replaced o2 sensor with new Denso two times
-Air filter is clean
-Voltage on both upstream sensors is around 3.1v
-Catalytic converter temperature is same on both sides
The LX470 is a MY2006. I have a 2000 LC so I can swap parts from one car to another if parts interchange. Just tell me what to try.
YouTube videos