Just done engine swap and isnt running right

[Jettwheatley]

So i just finished an engine swap, no conversion just put a lower kms ecotec in and after ive put it all together i noticed 1 plug not connected from the back of the plenum, i looked around on old motor and everything and could not find anything on where this would plug into, if you have any ideas on where it could go please let me know as my car is now missfiring like crazy and running really rich.

(its the plug with green rubber just on top of the rocker cover)

 

[Deuce]

Is that the plug for the map sensor located on the firewall?

 

[Jettwheatley]

i have no idea where abouts would that plug in

 

[Lex]

So i just finished an engine swap, no conversion just put a lower kms ecotec in and after ive put it all together i noticed 1 plug not connected from the back of the plenum, i looked around on old motor and everything and could not find anything on where this would plug into, if you have any ideas on where it could go please let me know as my car is now missfiring like crazy and running really rich.

(its the plug with green rubber just on top of the rocker cover)View attachment 249972

Just went had a look at mine.
That will go to the 02 sensor on the passenger exhaust. If you get to the cat, you've gone to far down.