stolenphoto I just noticed you're in kettering, you're probably only 30-40 mins from me

 

well, by some enormous coincidence the check engine light just came on on my other car (2000 honda civic) so I got the codes read, guess what ails the car...


... that's right, code P0325: knock sensor malfunction

so I get a little practice on these stupid knock sensors, hopefully it's in a less stupid place than the one on the truck

 

honestly man....

really test the sensor and make sure it's the sensor that malfunctions...

other things can cause the sensor to trip a light, even other sensors...

Knock sensors work off the ground...meaning if it test malfunctions its not sensing a ground at all...ohms test it to ground unplugged...

then tap the block lightly with a hammer or wrench and the ohms should jump one way or the other...

its like the same way a vacuum leak will cause a MAP sensor to trip or the O2 to go Lean or Rich depending how it reads...you can get two malfunctioning sensors just off a simple vacuum leak...

dont ever just assume a sensor is bad....check the voltages running if you can to see if they are in range and even if they are in the low range that can mean a loose ground somewhere not making full contact. All sensors fed off that ground will read low...or spike high

 

im pretty sure what the arrow is pointing to is the oil pressure sensor. just my .02 replaced on my 250 once. pain in the ***

 

Either remove intake or transmission...ur choice.

 

I know the sensor isn't necessarily bad, but it's still a pain to get to it to test it