Engine inquiry (pic)

[Donedreamin]

Hey , i just want to confirm what these two inputs (sensors) are on the block.

 

[Donedreamin]

I guess it's a good time to ask, what this wire is normally connected to .

Passenger side , located near the MAF.

 

[hottscennessey]

1) knock sensors.. green clip in the pic hanging up by the grounds on the intake manifold

2) looks like a wire comming off the thermostat housing lost a plug. I may have to bust out the TEWD and look up the wire color.

 

[nick88]

2. Could be oil pressure sender.

 

[Poodles]

First picture is two knock sensors and a block heater in the place of a freeze plug.

 

[Donedreamin]

I'm currently throwing in a 7MGTE into a cressida, without the knock sensor hooked up it runs. What can occur besides bad gas mileage , etc.

Is it crucial to have plugged in ?

Thanks alot for the responses, means alot

 

[kamikazemkiii]

Yess the car will run like shit without knock sensors.

 

[Poodles]

Retarded timing so good luck getting any power LOL

 

[Donedreamin]

Thanks buddies !

 

[kamikazemkiii]

Retarded timing so good luck getting any power LOL

Bingo

 

[Donedreamin]

Just want to confirm the two knock sensor connectors are different ? to prevent mix-up

 

[kamikazemkiii]

I dont think so.. you shouldnt have any problem because their location on the harness

 

[shaeff]

I'm currently throwing in a 7MGTE into a cressida, without the knock sensor hooked up it runs. What can occur besides bad gas mileage , etc.

Is it crucial to have plugged in ?

Thanks alot for the responses, means alot

Yes. Leaving the knock sensors unplugged will result in timing retard, bad fuel mileage, and enriched fuel mixture.

Two lower red circles = knock sensors. The uppermost red circle = knock sensor connector (there should be two of these)

Blue circle is a block heater that's installed in place of a freeze plug, as Poodles stated. The connector for that is not likely to be incorporated into your engine harness.

 

[Donedreamin]

This forum is very helpful , much appreciated.

One problem is , unfortunately i don't have access to the car right now as its a couple hours away in storage.

But it's quite clear there is not a plug-in for the forward facing knock sensor.
The verdict is i need to purchase a new unit?

 

[shaeff]

Assuming you mean the wire connector, grab some new ones from Toyota and follow this writeup. It's good preventative maintenance anyway:
http://www.supramania.com/forums/showthread.php?t=105505