always replace the knock sensor pigtail wire that goes under the
> intake and if you dotn replace the sensor, make sure the pin in the
> sensor is bright shiny and clean. And corrosion in this sensor will
> disallow ignition timing, and you will have little power and you will
> have to remove the intake again to fix it.
I'm about to go back in to do my 2nd t-belt+w/pump. i've been under the intake plenum twice recently to replace leaky valve cover gaskets...where is this sensor located (89 3vz-e)??? and, what's it cost? i noticed a lack of power recently- thought it was just the 300+k miles...