where is knock sensor module on 96 LT1

[beamer]

where is the knock module located on my 96 LT1- call me a dumbie- I don't know where it is - is it in the silver box- ecm on the driver side?
thanks for any info

96 collector's edition coupe.

 

[Magmotor]

It plugs into the PCM....

AC Delco: Part #216-66
GM: #16214671

Hope this help......

 

[kenwa]

There are two knock sensors on an LT1. They screw into the lower part of the engine block, one on each side, just above the oil pan, and below the exhaust manifolds.

Ken

 

[Magmotor]

My apologies...i was at the wrong end of the wire...:duh....here's a pic that locates em.....

 

[beamer]

thanks for the help, however another question on it. i opened up the ecm or pcm . very easy to do so. saw the 2 printed circuit boards. but didn't have a torx screwdriver to unscrew them. my 22 yr old son had them
but i'm hesistant to mess with the boards. is the knock module on the under side of the board?

 

[Rich96c4ce]

The knock sensor module is on the underside of the engine computer. You do not have to take the whole cover off the computer, just take off the four or so screws holding it to the bracket. Turn it over, and there is a little cover, maybe 40 x 60 mm in size. The knock module is underneath it.

 

[beamer]

thanks - I just did it. yep - you were right- easy as pie. just unscrew those two screws on the underside and plug the LT4 module in. Didn't make any science type measurements but . it feels like more zoom . when you are stopped at a light and put your foot on the go pedal - more power, less hesistantion. and on freeway - seems stronger .
now I know the LT4 module is less sensitive than the LT1 module, because the LT4 engine with the crane roller bearings was a louder engine. thats why I'm told the LT4 module is less sensitive. thus it doesn't retard your ignition as much. not being a engineer or real good at this stuff, how does not retarding the ignition give more power ?

 

[Rich96c4ce]

Let's see - igniting the mixture well before the piston arrives at the top allows the mixture to burn longer, increasing the pressure in the cylinder, and it pushes the piston down harder as the piston passes through top dead center and down again. Higher octane fuel in necessary so that the mixture burns rather than explode. Exploding is knocking and very bad. So, use the best fuel you can.

 

[Rich96c4ce]

Oops hit the go button too soon! Retarding is moving the point in piston location at which the spark occurs, closer to top dead center

 

[beamer]

I understand the theory of the internal combustion engine, but I have a question regarding this. If you retard the ignition so that the spark doesn't occur until the pistion is at tdc, wouldn't that increase the power since the fuel/air mixture would be more compressed. On the other hand, if the ignition was not retarded, would igniting the fuel/air mixture before tdc, allow the mixture to burn longer and more complete and thus it would also be more compressed as it reachs tdc.
I always use 93 octane in my 96 LT1 engine.