We have a 98 gsr with a greddy turbo kit, it keeps throwing the code for the knock sensor. Can anyone think of any detrimental effects of removing the sensor, or unplugging it? Thanks,
Brian

 

try replacing it with another good knock sensor..
its important, it helps retard the ignition/timing when it detects pinging, or knocking

as for bypassing it if you really want to..

you could try this, but I dont know for sure if it would work or not..

take the knock sensor that you have and check the resistance with an OHM meter.. maybe get the resistance from a good one.. then go to your local electronics store and get that resistance..
get a big 1 watt one (or 1/2 watt)
and then tap it onto the knock sensor wire and a ground. this will tell the ecu that it is there. but remember, the safety factor is bypassed and the ecu won't compensate for the knocking or pinging if it happens.. I dont recommend this method, but it SHOULD work.

good luck

 

About how much are knock sensors? Any specific kind?

 

If your knock sensor is sending a signal but its working correctly then the sensor is not the problem the detonation is the problem. When you add a turbo you have to compensate for the higher cylinder pressure by doing one or some of the following. Retarding the timing, using higher octane fuel (possibly racing fuel), get an msd or similar ignition box, lower compression. The easiest way to lower compression is to pull the head and use a thicker head gasket. If its just a little boost you can usually get away with retarding the timing a little and using premium gas.

 

Anyone put a resistor in-line like this? I (well the guy that changed my oil) broke my sensor, and I would prefer to bypass instead of pay 100+ dollars for a new one...I always use premium, so I'm not too worried.

 

sounds like detonaton to me . your car is relatively new and you are getting #23 knock sensor code? if so you may have your ignition timing to far advanced or perhaps not enough fuel. (just a thought)

 

It turned out to be a shitty magnecore wire that wasn't firing all the time. Yeah just what we needed on a rebuilt motor.

 

hey Chris I have a code 23 too should i replace the sensor?