WhtmaxRcr

anyone know where and what a knock sensor does?

blackmaxx96

iTrader: (23)

I detects when your engine "knocks".... please read the stickies....it is very helpful

kcryan

iTrader: (1)

It should be 30 posts before you can start a thread, sorry but stickies or google could answer this so easy

ThisMaxIsTight

iTrader: (23)

yup !!! .. plus 1 on this ..... what is a knock sensor is like what is 2+2?!

joooowan

it senses when to knock you in the ***** while your driving.

nismos14

iTrader: (56)

The knock sensor is like a sensitivity control for you're alarm. Like if the windows are broken by a thief, and the knock sensor is messed up the alarm won't go off. If you don't have a factory alarm, don't worry about it. Its located in the trunk on the passenger side rear 1/4 panel under the grey cover near the antenna. Hope this helps.

goldtooth

iTrader: (56)

Make him stop! Make him stop!!! Lungs need rest....

nismos14

iTrader: (56)

All you guys telling him that it detects knock need to get real. We all know vq's are bullet proof and never knock, go ahead and use 87 octane in it, it will have NO adverse affects what so ever!

udienow

iTrader: (15)

http://www.motorvate.ca/mvp.php/507 - Info and write up to replace

http://www.skippynet.com/maxima/knocksensor.htm - Write up and nice pics of where it is

http://forums.maxima.org/showpost.ph...45&postcount=4 - Buncha info on KS.

Nismotic

iTrader: (25)

the only helpful post in the thread.


please read the stickies upon entering.

killcrap

iTrader: (3)

a knock sensor is a piezoelectric crystal. it produces its own voltage. the pcm uses prom to determine what the voltages mean from the sensor. normally, the pcm will advance the timing until the knock sensor detects knocks, and then the pcm will slightly retard the timing.

Sounbwoy

iTrader: (2)

231,000 miles. 87 Octane used 90% of the time. My light has only lit up once for a bad O2 sensor. I have a knock sensor code, that I probably had since I bought the car used.
What adverse effects are you speaking of?

Nismotic

iTrader: (25)

best deal is to get it swapped out soon. 4th gen max's are known for the infamous knock code.

Sounbwoy

iTrader: (2)

Yeah. I will. I just get so tired of the infamous octane debate. We all KNOW what the car was designed to run on. There are arguements for and against it and the owner's wallet is going to have the final say.

Fr33way™

iTrader: (23)

Its not like its that much of a difference to put in the good stuff.

ALL gas prices suck anyway . . .

Nismotic

iTrader: (25)

It's your car, and you're free to believe in either side of that endless debate. All i know is that is recommended in our manual, and i have felt the difference between both. Therefore, I will throw out pennies to pay for premium

Sounbwoy

iTrader: (2)

Speak for yourself, man. It's all relative, and everyone's circumstances are different. The prices make a difference to ME.

f550maranello2

iTrader: (2)

In a nut shell.... it adjust the engines timing... if u are using low octane fuel it will retard the timing so that premature detonation wont occur...

f550maranello2

iTrader: (2)

Yea we can all thank our great president for that!!!!!