Help with unused electrical plugs on 1991 Q45 Engine & Harness

[dsagers]

I installed an engine and have two unused electrical plugs unused. Anyone ID these?

The plugs are on the driver side and reach to the area where the air filter sits.

Thanks in advance!!!

First Plug



Second Plug

[Infinitiguy19]

Does it start right up?

If yes then thats for the timing (To check the timming).

if the car doesnt start then i don't know.

[dsagers]

Yes, the engine starts, revs nicely and idles smooth.

Dumb question, but which plug is used for timing & how do you use it to check timing?

[Infinitiguy19]

Sorry should have posted this in the begginng or you can uses a consult cable. http://q45.org/checktiming.html

[dsagers]

Thanks for the info!

If I understand correctly, the plug pictured in pics #2 - #4 are for the timing?

[Infinitiguy19]

They should be I can check tommorow and report back but I am 75% sure.