Ok so for a while now my check engine light was on. i knew what it was setting it off (knock sensor). From what ive read on the org, that is quite common. Ive ignored it for a while cuz i didnt order the part.... well i ordered it, and now that light is off . is it still worth replacing the knock sensor or should i just wait for the light to come back on again. and to anyone that thinks it: the bulb did not burn out, i made sure of that before anything haha

 

The knock sensor DOES NOT set a check engine light.
What have you been reading? That info is posted everywhere on this board.

Go to the stickys up top and pull the stored error codes, then use the code reader to find out what's tripping the check engine light.

 

that's true the knock sensor will not turn the check engine light on.
if it is faulty it will store a code so when you run a diagnostic you will know if you have to replace it.

 

ok, the code is there when i scan. i think i remember it saying something about the MAF. i could be wrong tho

 

Go ahead and put in the knock sensor. It will make the car run a heap better. Once you clear out the KS code, you can work on the others.

 

err.. my CEL was on for a while and and i had 4 codes. One of them was the knock sensor (0304) and it stayed there untill I changed the KS last week.

 

Once again, the knock sensor WILL NOT trigger the CEL. It is a ghost code. If you replaced all the other sensors and you left the old knock sensor, the code would be there but no CEL.

 

so what set off my CEL? I know it said MAF, but it always seems to come on after i clean my TB. could that be the issue?

 

so . . . the CEL goes away a while after you clean the TB? What are you using to clean it? Residue from cleaner could cause a temp MAF until it 'wears off'? Have you cleaned the MAF, too? You also may have an intermittent bad connection to the MAF, causing this problem when you're working around there doing the TB ? Lotsa guesses here, but you don't give much info. When was the last time you checked your codes? As for the KS, I did the resistor 'fix' about 3 yrs ago and it's still OK. Only cost $5, cause I had to buy a pkg of resistors at Radio shack, I just use '93 ( highest octane available in the Maritimes) and don't do WOT punches.

 

what set off your CEL was NOT the knock sensor. even if the CEL is not on, you could run a diagnostic and see a knock sensor code.

STEP 1: FIRST READ http://forums.maxima.org/4th-generat...ing-forum.html
and note it says this: "If you post about your CEL coming on before you have checked for the codes, it will get locked. Please do not ask why it may have come on without the codes."

STEP 2: Go in here and do some research! http://forums.maxima.org/4th-generat...ere-first.html

STEP 3: USE SEARCH to figure out how to fix your problem

STEP 4: if you you have trouble just ask!

lock it up

 

wow, soo many noobs, soo little time....

 

Im using TB cleaner. When I clean it the car is off and i get in there good and scrub it with a tooth brush and getting all that "fun" carbon build up off. I start the car and give it a few sprays while opening the TB. I could be doing this wrong, lemme know if I am. And I have not cleaned the MAF. And I checked my codes a while ago. Probably gunna check them tomorrow