knock sensor 10$,70$ or 150$

[soryu]

for those of you that have replaced your sensor which one did you use?
for the DE.

[Eramo323]

Free!
...

[DJ-of-E]

It's a knock sensor, so you get crappy idle and crappy gas mileage. It's still a sensor, something I'd still refer getting oem. If you want to save $40, then just get the Boshe one.

[hOngsterr]

i bought an oem one for 30 bucks. It was supposed to be aftermarket too lol

[soryu]

i picked up a 7$ off ebay.
code gone.

[strider hiryu]

I have an extra knock sensor if you want pm me.

[soryu]

Thanks, but already got one.

[soryu]

Well I'm getting the code again.
Looks like I'll be getting the 40$ sensor.

[blktopsr20]

Dont waste the $40. It will not solve it..

[P-Funk alot]

i have a bnib knock sensor oem too pm me if you want it. and by the way oriellys sells the oem ones still in the oem wrapper just in a bwd box

[s14boy]

what coads coming up? maybe your ecu's detecting knock lol. post up the coad your getting.

[silver350z05rb]

Oem is preffered by the ecu lol

[Trap Star]

what coads coming up? maybe your ecu's detecting knock lol. post up the coad your getting.
Its spelled CODE genius.

[JDMRIDDAZ]

check the harness to knock sensor..it can get twisted up over time and start to mess
up....and DAMN near all nissans frm 90-99 use the same knock sensor...
jyard one is good as long as its not dry rotted or cracked

[soryu]

i got a new sensor today.installed it reset ecu and code 34 came up.
i'll be checking out the harness to see if there is anything wrong with it.
it looked ok when i had it out.

btw,no other codes,mpg from 22-29. idle at650.no bogging.

[Croustibat]

These knock sensors are useless when the engine is not bone stock, just remove them and place resistors to simulate a "all is good" situation . I think that was a 500 ohm resistor on each ECU wire going to the sensor.

[soryu]

so i got another new sensor dropped it in code still showing.
i went thru the steps in the fsm.
check subharness for continuance, there is.
check harness for continuance, there is.
i dropped in a resistor 1/2 watt 1mega OHM. code still there.

how is the resistor supposed to be set up?
i have it each end in the wire like a staple.
or should it just touch one side?

[Butcher240sx]

Look at my delete thread. Ignore the dumb ass that tried to be Mr coolguy.

[soryu]

both ends of the resistor should be plugged into the socket or just one?
either the + or- or one end on each?

[rwtf]

I would like to know as well...you used a 1mega ohm resistor? I keep hearing different ohms...so which is correct?

[soryu]

i have a 1mega but it's not working unless i put it in wrong.
others say 560ohm

[driftminds13]

i got one i pulled of a running make me a offer

[Butcher240sx]

560k ohm its roughly half a mega ohm. The resistors plug in in series on the harness. 560k is what worked for me. I used multiple resistors to dissapate heat better than one.

[Butcher240sx]

I've seen a lot of bad knock sensors lately. Here you go. Not my fault if you blow your engine
I just tested my knock sensor today and found it to br dead. No resistance at all. I pulled a code for a bad knock sensor. My car wasn't pulling hard before 5K rpm. The new one is $200 and a pain in the ass to change, so i decided to bypass it. The ECU sends the sensor 5VDC and returnes 2.5VDC. So you need about .56M ohm or 560k ohm.
I went to radioshack and bought a pack of 100k and a pack of 47 k resistors. i wired 5x100k and 1x47k in series and 2x47k in parellel and that gave me exactly 560k ohm. I then disconnected the harness and plugged the resistor pack into the ecu side harness. I reset the ecu and went for a drive. With a 3degree timing bump and this delete, my car pulls hard and smooth. I only run premium gas so I don't think detonation will be an issue.
http://i1114.photobucket.com/albums/k537/Butcher300zx/IMAG0213.jpg
Ka24,ka24de,ka24de knock sensor delete, ka knock sensor delete,

[soryu]

:confused:i threw in the 560 resistor and the code still shows up.

[Butcher240sx]

560k right? And you plunged each end into the ecu side harness and reset the ecu. Right?

[soryu]

yeah reset ecu, get 55 turn car on get 34.

[soryu]

so i checked my harness again for continuity.
there's no continuity. i was checking the wrong pin in the harness:bash: that's why the resistors didn't work.
i checked the ground cable and got continuity. how do i go about fixing this?

i tried adding the resistor by cutting the red and green wires and adding the resistor between them but still got the code.

i'm thinking i can snip the connector that connects to the subharness.
wire two new wires to the connector run one to the ecu and the other ground it somewhere near the engine.:s101:

[soryu]

where can i get one of these insulated wires?

[Butcher240sx]

you were supposed to unplug the sensor near the front of the head, put th resistor in its place. Not start hacking up your harness with a box cutter. also never apply votage to the ecu with a meter.

[soryu]

i did connect the resistor at the front of the head but since there is no continuity it didn't do anything.
where can i get a new wire?

[Butcher240sx]

Did you check for voltage at the plug for the sensor? You can buy wire anywhere.

[soryu]

i checked the voltage at the ecu it's 4.8
i turned the car on it stayed at 4.8
no voltage at harness connector, harness disconnected.
i'll be getting a shielded wire at home depot.


went to depot no shielded wire. i got regular electric wire. snipped harness connector.
ran wire from ecu,another one from (-) battery to harness connector.
connected connector to subharness.
got code 55.