I finally boosted my 95 KA-T and everything is good so far except I get code 34 on the ECU. I took out the sensor and bought a new one and replaced it. But still code 34! Here's what I have tested and done:
I get 4.88 volts to the clip that connects to the knock sensor with ignition on, with the sensor disconnected. Checks out fine (I'm supposed to get 5v).
I get 2.53 volts when I plug the clip into the sensor harness and again, it checks out fine for what I have read on other forums since the sensor adds resistance. (I'm supposed to get 2.5v)
However, I have noticed that once I turn the car on the voltage increases to 4.55 or so when the car reaches 180-195 degrees! I'm not driving the car I just let it idle to get to that temp range. Even if I turn off the car, then put it with key on ignition I still get the high 4.55 volts even though the car is not running.
Can anyone suggest anything? I bought a new sensor harness and I hope that does it. I even added grounds and no use. The sensor checked out at .566 ohms resistance so it's good.