I was replacing my PCV valve yesterday and I broke a wire that plugs in directly between the oil filter and the pcv valve. It has a black boot (see photo). Can someone identify this wire for me so I can figure out how to replace it? The car runs and drives fine so far. Thanks!

 

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That's your oil pressure sensor wire.

 

Would the oil pressure sensor indicator light not come on in the cluster if it's detached? (ie., during the cluster light check cycle before startup). Or, would it stay illuminated the whole time when the car's on? Something tells me the OP would have noticed that though.

 

he asked what wire it was. I seem to remember something weird with this sensor though.

 

Yep, I'm just curious. Maybe OP can reply with what he sees.

 

I seem to remember my light staying off when I disconnected that wire while fitting a T behind the sensor for an oil feed line, but that was...****, two years ago. I could be wrong.

 

It broke inside the boot so I just snugged it back on using the boot. It may be making a connection still if a total disconnect would/should cause a cel. Thanks everyone!

 

It's not related to throwing a check engine light, just the oil light on the dash.