RB26 Knock Sensor

Good day, In the past my car (R33gtr) was tuned on a Apexi power FC and was able to monitor/detect knock. Presently I'm tuning it with a Haltech standalone and i've never seen/detect any knock. Is there a safe way to find out if my knock sensors are working?

Hello easiest way is to set up the logging hold the rpm up to where is active and tap the block or sensor with a metal spanner or hammer and watch the log

you should see the spike this creates

Thanks much!