Originally Posted by CmptrNerd
What about an NTK sensor from NGK? Anyone know anything about these as far as working goes? Got one a couple of weeks ago but havent installed it yet. Im guessing the one in there is super old and has probably never been replaced but I dont know.
I have and I think it might relate a little to the 'problem' some so I'll rant for a sec :P
I used one for a while. Half of the time it was in the manifold my engine was torn apart though. When I first hooked up Wills scantool it looked like the readings were fine, other than at idle. It reacted quickly but would bounce around a lot, seemed really hyperactive. It only had about 3k miles or so on it. The bad part about being hyperactive is as it jumped wildly it would bounce on like 430mv then up to 700 then 680 then 550. This would make the car run rich for a little bit because the PCM only listens to 400-600mv, so I've read. So at 430mv it richens it up a little and doesn't 'hear' back from it till it reads 550. If the real reading should be been 550 I was running rich for a little bit and didn't need to be.
I replaced it with a Borg Warner a few weeks ago and rechecked the o2 readings. This time the highs were higher and the lows were lower. It was much smoother in its readings and wouldn't jump all over the place as much. It would still read a tad random at times but less than 1/4 of the time the NGK did. This, obviously, would help the engine only use as much fuel as it needs.
I didn't keep good track of the mpg but with this but I think differences in manufacturing quality may account for a bit of gas mileage. Aparently you really have to watch out. When I got the Borg Warner the first one they handed me, still "fresh" in the box, was really nasty looking. Almost looked used. They took the next on off the shelf and it looked MUCH better. Makes me wonder how nasty the element is on some of these.
I type too much huh