Knock sensor Lights

Txsupra

Professional Driver
Aug 23, 2008
239
0
0
42
Texas
I have searched around and haven't found any write ups on this.
Wiring LEDs (one or more) in to the knock sensor circuit. Im running standalone and would like to SEE when or if I knock. The computer will adjust acordingly when and if the motor knocks but I want to see it as some times I will be tuning on the fly. The ECU wont adjust that fast when tuning on the go.
I have read on some other sites that people have taken certain (Volvo, Porsche) sensors and wired them with various components to a 1/8 headphone jack and listened for knock through a headset. That's a bit too far for me.
I know that there are A/M LED knock sensors but just dont want to pay hundreds of dollars for them.
I also want to know of another good place for a third sensor? Most sites that Ive read on say that any good threaded port or pocket will work as long as its in the block and as close to the lateral center of the crank as possible.
 

Txsupra

Professional Driver
Aug 23, 2008
239
0
0
42
Texas
Everything, at one point has been done to a Supra. Im sure at some point this has been done.
 

deabionni

The Lurker
Sep 16, 2007
431
0
0
Kalkaska, MI
Txsupra;1403023 said:
I also want to know of another good place for a third sensor? Most sites that Ive read on say that any good threaded port or pocket will work as long as its in the block and as close to the lateral center of the crank as possible.

I don't know about wiring LED's to the knock sensor, but I do know there's a spot in between the knock sensors where you could add a third knock sensor.

The GTE uses two knock sensors - one on the front of the engine, and one at the rear. The GE only uses one knock sensor, in the middle of the engine. You could just add a sensor in the middle of your GTE engine where the sensor for the GE would be.
 

hottscennessey

DONT BE A BITCH!
Jun 3, 2005
3,137
0
36
37
Richmond, VA
Txsupra;1403023 said:
I have read on some other sites that people have taken certain (Volvo, Porsche) sensors and wired them with various components to a 1/8 headphone jack and listened for knock through a headset. That's a bit too far for me.

thats what i did with the factory knock sensor. Works great. I use it when tuning customer cars.