finishing up engine transplant, a few final problems

[sno_boarder4343]

hey so i was just finishing up putting my new engine in and i have just a few things ive found under the hood that i could use some help finding out what plugs into what, and so on. the car in question here is a 1990 laser rs. PLEASE HELP!
first off there is this plug that was on the wiring harness that i have not found what plugs into it anywhere around it. It is purple and right behind the air intake on the engine here are a few pictures of what i am talking about.

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so if anybody knows what plugs into that it would be a great help to know thank you.
secondly i have this small plug that comes off of the oil pump right around the oil filter. again there seems to be nothing in the immediate vicinity that would suggest where it could go. once again here are some pictures.

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so if you know where that goes it would be a great service to me if you could inform me where it goes i would forever be in your debt. these are my final problems that i cant figure out so if you aid me in this i will be driving here pretty soon.
thanks

 

[DSM nOOb]

The first I'm 95% sure is a test connector and is not meant to be plugged into anything. The second is for the oil pressure sending unit.

edit:

obviously that isn't the factory wire but you get the idea.

 

[JayJones]

this is proved by snowboarder714 excellent found it with the search feature. has every connector in the engine bay http://www.dsmtuners.com/forums/articles-electrical-wiring/298047-2g-engine-bay-electrical-connections.html

 

[sno_boarder4343]

AH! thank you that helped so much both of you. thank you very much.

 

[snowborder714]

FYI, that article was based on a 2g, so some stuff might not carry over to a 1g. But the majority of the connectors are similar/same.

I'd say the first one might be the knock sensor. Look for a sensor threaded in the back of your block between cylinders 1 and 2, I believe, and see if it's plugged in anywhere.

 

[JayJones]

yeah I noticed that but some of the connectors should be close, but yeah first one I agree is a knock sensor