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hi
can i put the wideband sensor into the rear O2 sensor pung on the the exhaust, or needs it to be near the front O2.
i´m not using the rear sensors, so it would be good if i could just installe it there, so i wouldn´t have to do any mods to the exhaust to installe a exhaust pung.
i´m using NGK Afx.
thanks
Do you still have your catalytic converters? If yes, then no. If no, then maybe. The further you get from the engine, the cooler the sensors run. If they run too cool, they may not work properly. My LG headers/ x-pipe with cats puts the rear sensors so far back that they never worked properly. I don't know if this was due to the lower temps, or the less efficient "high flow" cats, but I had to tune them out and forget about them. Depending on the controller you use, you can put the sensor up front and have it provide two signals: a narrow band signal for the PCM, and a wide band signal for yourself.
Last edited by Its_Go_Time; Dec 11, 2009 at 07:24 PM.
Do you still have your catalytic converters? If yes, then no. If no, then maybe. The further you get from the engine, the cooler the sensors run. If they run too cool, they may not work properly. My LG headers/ x-pipe with cats puts the rear sensors so far back that they never worked properly. I don't know if this was due to the lower temps, or the less efficient "high flow" cats, but I had to tune them out and forget about them. Depending on the controller you use, you can put the sensor up front and have it provide two signals: a narrow band signal for the PCM, and a wide band signal for yourself.
no cats, i´m running kooks Xpipe offroad., i was reading the NGK´s install instructions , and the sensor needs to be in the 12" to 48" range from the engine, i just have to measure that to know it.
I installed my widband sensor as clse to the engine as I could. Here is my X-Pipe:
You need to have the bung welded in on the left side, angled slightly up, to keep moisture out of it. The left side will monitor Cylinder #7, which is the worst to run lean.
You remo ve the tunnel plate, then drill a very small hole in front of the ash tray (after the console is removed, of course). That is how I ran mine anyway. There are other methods, but this worked for me.
Most all of the widebands will also emulate a narrow band. Just replace the front O2 sensor with the wideband and hook the other wires that emulate the narrow band back to your engine harness. I have been running my LC1 that way for almost two years.
I would not do that, you'll only get readings from one side if you put it before the X. To get proper readings on both sides, go with Clif's suggestion above. Exactly where mine is.
I would not do that, you'll only get readings from one side if you put it before the X. To get proper readings on both sides, go with Clif's suggestion above. Exactly where mine is.
yes i agree there,
i used to runne the wideband beside the driverside front sensor, but now after i got bigger headers i decided to have it right after the Xpipe in one of the rear sensors cap. and it´s working fine.
now the readings is from both sides i would think...
Wideband must be as close as POSSIBLE to the #7 cylinder inorder to give the MOST accurate readings - #7 is the one cylinder that will have the highest potential for a lean condition
Here are a couple of pictures of where mine is located on the Drivers Side closest to the #7 pipe on the Kooks Headers: I also use the AFX Wideband-