I don't know where this plug goes

[sonicstimuli]

I put on rebuilt heads yesterday.
96 4Runner Limited, 5VZ-FE motor.
There is one triangular shaped plug coming out of the back of the motor near the firewall. It's the only one I cannot find a plug for. It comes from the back sort of near where the water bypass pipe heads toward the firewall. Just looking for suggestions... or a wiring routing diagram for a 96. Thanks.

 

[TheeMikeB]

I put on rebuilt heads yesterday.
96 4Runner Limited, 5VZ-FE motor.
There is one triangular shaped plug coming out of the back of the motor near the firewall. It's the only one I cannot find a plug for. It comes from the back sort of near where the water bypass pipe heads toward the firewall. Just looking for suggestions... or a wiring routing diagram for a 96. Thanks.

Can you post a pic of what you are talking about?

 

[sonicstimuli]

I will post a picture shortly. I do know (now) that the knock sensors come together and this is the plug that goes to both knock sensors. As I said it comes from the top end of the motor, out the back by the firewall. I'll post a pic as soon as I get off work.