Help me fgure out this plug please !!!

[Buell]

2000 civic ex bone stock. Was trying to diagnose my car stumbling upon acceleration and my guage cluster needles not moving when I found this. My exhaust melted the wires for the 02 sensor off which should explain my lack of power. But dangling near my oil pan was a one wire sensor with this little piece plugged into it. What's it go to ?

 

[Buell]

Knock sensor or oil presssure sensor maybe ?

 

[yevangelis]

knock sensor

 

[Buell]

Is there a reason why some are $10 and some are $115... Seems like s huge difference for just a small sensor

 

[Buell]

Not the knock sensor as far as i can tell by reaching my hand behind manifold and feeling sensor above oil filter and knock sensor is in place right above it

 

[yevangelis]

Well what's within its reach?

 

[96 DX Hatch]

My guess given your info

Oxygen sensor, primary (#40) or secondary (#27)

Trying to remember what's all back there but if anything I'll look at mine in the morning

 

[yevangelis]

jusayin

 

[96 DX Hatch]

That's what kept sticking in my head but couldn't find it on Majestic's site. Knew I've seen it before just couldn't remember where