im helping my friend do his b20 swap in a 91 ls there is two sensors beside the oil filter one has a green plug the other has a rubber boot ( not the oil sending switch) what r these sensors also where do they go on the b20

i think the one with the green plug is the thermostat cooling switch


please help im in the middle of the swap right now that is all we have to do before putting it in please help

 

please help us

 

Green Plug, are you talking about a wire hanging of the wire harness??? That is probably for the Power Steering Pressure sensor. Rubber boot should be the oil sender but could also possibly be one of the alternator wires.

 

there is another plug with a boot on it it is right beside the oil plug and as for the green plug it is a plug not wires and it is not the altenator plug they both plug into the block (firewall side)