ok in a recent post i was asking about exhaust overheat light flashing on hard acceleration since i installed new pfc in my jdm fd. i'm very new to the pfc & am learning more every day. a member advised me to check my knock reading & if over 60 this is probably the cause of flashing light. my reading is as high as 76-78. does this sound like a bad sensor or should i be looking elsewhere? i know i've read about false readings before due to sensors being ''noisy''. basic bolt on mods intake/exhaust/v-mount. always run high octane fuel. any advise from the gurus would be great thanks

 

Do a visual on the sensor and if you see it dripping something like dark orange/brwon crap, then it is bad.

Observe your commander for knock values while doing ordinary driving as drive train slop and noisy suspension can cause FAKE KNOCK.

 

i'll check that thanks