when i installed the knock sensor i didn't use any type of sealer or teflon tape. Just screwed it in, and torqued it down. I tried from the ks terminal to the metal body of the ks, and from ks terminal to several different grounds. No readings at all. The mulitmeter is not picking up anything.

Should i just buy a new knock sensor?

Also wanted to add, that before i had the service engine soon light, the car had a consistent part throttle only hesistation that went away after the ses light came on.

 

Open as in open circuit. No continuity. Busted/broke.

 

When you checked the single wire in the harness, you should have pulled the wire off the sensor, turned the key on, set the multimeter to "DC Volts". Connecting from the harness wire to ground should produce about 5V. IT appears you successfully completed this step.

Then.... reset your multimeter to "Ohms", and without connecting the harness wire, probe from the single pin on the knock sensor to the block. Should read 4Kohms. I'm willing to bet you actually got 4.05 Kohms. Are youy sure is was only 4.05 ohms?

Anothe thing to check - reconnect the harness wire to the knock sensor, key on, reset your multimeter to "DC Volts"... should read 2.5V.

Based on some of your questions, and the way you described your use of the meter, it isn't clear that you are setting it correctly.

 

When i got 4.05 ohms not sure if it was kohms or ohms, i had red wire plug into harness, black wire to ground.

When i performed the checks to get a resistance reading b/w the knock sensor terminal and the block the key was OFF. That's waht shoebox said earlier, in your above statement you didnt mention it. I'm not sure if it would make a difference.

I'm unsure at which two points do you want me to check the voltage?

I tried to describe everything i did step by step so it would be easier to determine this...

Thanks for the help and all the replies

 

You need to know which one it was... 4.05 K ohms is good. 4.05 ohms is bad.
As long as the harness connector is not connected to the knock sensor, it doesn't make any difference.
Connector on the knock sensor, key on. Push the red wire pin into the connection between the harness and the pin on the KS. Put the black wire pin on the block. Read voltage.

 

this is very similiar to the same problem/code I am getting. The idea of using too much sealant is interesting, I may have done that, but the car seemed to drive fine until just recently. The car sat undriven for a week, then developed this code too.

 

I see whatyour saying but shoebox told me i performed this part incorrectly. I measured resistance b/w the harness and the ground... NOT b/w the sensor terminal and the block

 

put a new knock sensor in. measured b/w the ks terminal and the metal body of the ks got 3.88 K ohm consistently...