I've read that it's a pretty impressive gain, from some people, after a KS replacement. Others claim its hardly noticeable. some say mileage went up 2 mpg, some say its like they fixed a gas leak.

Post ur experiences with mileage and performance when u fixed ur 0304 KS code. Thanks.

I havent seen a post like this, and if I did, I cant find it.

 

Doesn't this

Contradict this


??



And your poll wont be very useful since we can only vote once.

 

my best 1/4 mile time w/ bad ks: 15.5 @ 88mph, 2.4 60'(17" rims/intake/ypipe/80 degrees)

my best 1/4 mile time w/ new ks: 15.0 @91mph, 2.4 60'(17" rims/intake/ypipe/80 degrees)

Both runs were within 2 weeks of another and were done at the same track, Englishtown, NJ.

I felt a huge difference in power both low and high end rpms. The most noticeable difference is off the line in 1st gear. It used to feel so week I hated my car. Gas mileage also went up abougt 2mpg in my case.

btw - this is not a "mod", consider it more like maintainence.

-Paul

 

after replacing the ks I NOTICED he power being back but my MPG stayed the same

 

All I know is when I had my automatic...w/ bad KS..I would ound it from a dead stop...and tires wouldnt squeal. After new KS.....they did.

 

what are the symptoms of a bad ks? I know about mpg going down, but what about in terms of power? acceleration? etc.?

 

I had the ghost code 0304. I replaced the KS and I felt some more power but the gas mileage didn't increase at all.

 

if I go to autozone and they hook up to my ecu, will their device detec the KS ghost code or not?

 

Yes it will, but they may get spooked out by it. It can be scary if you're not spiritually ready to confront it.

 

The guy who checked mine shat his pants.

 

 

MUAHAHAHA! I like that. You guys can be pretty funny lol

 

knock sensor ghost code, it's a mutherr fukcerr

-Paul

 

oh man, thats classic

 

I've Been Hearing About All This 0304 Hype For Some Time Now. Im Guessing Everyone Is Afraid Of It Because.... It Costs 100 To Replace? Or What?

I Understand It Sucks And All...but Is This Silent Code Thrown Like Every 15k Miles Or What?

Just Wonderin

 

No' it's thrown when the knock sensor dies. This happens to just about everyone, before 100k miles.

It's an issue because the part is $100 and you risk major injury to your hands while changing it. I still have scars, both physical and emotional...

 

Aint that the truth

 

Is it easy to screw something up when changing the KS?

 

I don't believe in "feeling" the cars power. Its all metal. I need real numbers to tell me I'm going faster. When I unplugged my KS I pulled very low timing(like 17 degrees at the top of first) With it plugged in I pulled 25 degrees in the same rev band. Yet I felt no difference in power.

And I've never been able to squeal my tires when it was above 40 degrees. Is there anything wrong? I doubt it.

 

well ill post results when i throw the new ks on there. i got one from ebay 100 shipped. I have a meeting tomorrow at 9 am with an experienced knock sensor replacer. He's going to show me a slide show of what COULD happen to my hands. Try to scare me straight or something. I think I'll be ready after that...emotionally,mentally,mechanically, and physically

 

Here's some "real numbers" for you:

my best 1/4 mile time w/ bad ks: 15.5 @ 88mph, 2.4 60'(17" rims/intake/ypipe/80 degrees)

my best 1/4 mile time w/ new ks: 15.0 @91mph, 2.4 60'(17" rims/intake/ypipe/80 degrees)

-Paul

 

Here's more "real numbers" for you:

my best 1/4 mile time w/ 30 psi in tires: 15.5 (bone stock, first run ever)

my best 1/4 mile time w/ 25 psi in tires: 15.1 (bone stock, second run ever)

...only got to run twice that day because it was packed, sucks.

 

Week after replacing mine.. still havent really tested the car. lotsa snow lately but still have visibly red cuts on my hand... that god awful knock sensor. Oh and also a little burn cause me the smart one put it in after running the car to get the tools.

 

how exactly do u guys get injured when changing a knock sensor??
i dunno ive never done it before thats why im asking

 

its in a tight spot and there are like metal things that stick out and they cut the $hit out of you

 

I remember when i was changing mine i cut my finger while it was in there trying to get the bolt started in the threading. I kept shoving my hand in there not knowing i sliced my finger really bad. I started noticing that the bolt kept slipping thru my fingers, i thought my hands were sweaty then i take em out and see blood ALL OVER THE DAMN PLACE. It was kinda funny, and you can still see blood stains on the engine from where it dripped everywhere, i should take pics.. haha

 

There is no need to subject your hands to that abuse. Removing the IM only takes 30 more minutes. You'll have a clear shot and you can file down the offensive sharp parts for possible future knock sensor issues.

 

but, cutting corners feels so good....

 

Polish it, and clean out the CRAP that builds up in the EGR port while you're at it.

 

Just filled up today after one one tank of gas after replacing the KS, and mileage is up to 23 from 21. Performance is much improved.

 

just changed mine in 30 minutes and WHAM !! alot better !

 

+1. On top of that you can accurately torque the knock sensor down properly this way. Too tight too sensitive, and vice versa.

 

my hands had no abuse just use a magnet a 12" extension a wrachet a universal and a 12mm short socket...done

 

Agree completely. Also lay wrags on top of all the sharp stuff near where your hands are going to be, and use mechanics gloves when breaking the bolt loose.

 

What about this --->

 

nimsology?

 

Ninja edit ** I cant type... fat fingers I guess

 

Doesn't the KS not affect power after 3600 RPM?

 

Where do you get your information from?

 

NO, in the stickies there is an excellent explanation of how KS affects power.