Headers and o2 sensor
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Junior User
Joined: Jun 2011
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From: Ravenna,Ohio
Headers and o2 sensor
Ok so after all the work ive been doing to my truck the compression is dropping out of a cylinder. I ordered a long block to replace my motor with instead of taking it apart and trying to fix it and i figure if i have it out ill put headers on it and im not sure what to do with the o2 sensor that is on the stock header. Any ideas/comments on a good header. trying to be around 200$
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From: Virginia
They don't fit that good underneath, and if you have only one O2 sensor, it needs to go in the y-pipe where it can read both sides of the engine. If you end up running long tubes and putting the O2 sensor in the y-pipe on it, it will be too far away from the engine and won't heat up enough to read correctly.
I can't remember if the trucks have two O2 sensors, one for each bank, or just one in the y-pipe.
I can't remember if the trucks have two O2 sensors, one for each bank, or just one in the y-pipe.
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Joined: Oct 2012
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Most OBDI vehicles just have one sensor, located on one bank of a multi-bank type engine anyway. On my 1985 5.0 it has a single sensor at the rear of the passenger side manifold. It does at least see exhaust gasses from four cylinders, whereas with a similar location on a set of headers the sensor would only see exhaust gasses from an individual cylinder. I have see this arrangement, though I imagine it wouldn't work well in the grand scheme of things.
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Junior User
Joined: Jun 2011
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From: Ravenna,Ohio
It does only have 1 sensor on the rear of the passanger side. So what would the difference be if on a set of long headers you drilled a hole at the end where the exhaust pipe would meet and installed the o2 sensor there. All exhaust gasses sill would pass through there. I dont know much about this thats why im asking.
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