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VTECFRED
07-30-2012, 10:57 PM
So some how my knock sensor went bad and I could not find a DIY to comfort me in my time of need. After looking at it from the top and bottom I decided this was the easiest way to do it.

DTC P0325
Car was sluggish and bogged out under heavy acceleration. Idle was ok but not as it should be. When lightly accelerating it would misfire.
I will assume general knowledge and ability to work on your car and will not be responsible if you break your stuff

Tools:
Towel (to protect paint)
24MM Deep socket (appropriate sized ratchet usually 1/2inch and extension)
**NOTE** you can use an adapter to go from 1/2 to 3/8 ratchet
1/4 10mm socket and 1/4 Ratchet for hidden bolt next to battery
1/4 extension (so you don't rake your knuckles)
1/4 10mm Deep socket (for loosening battery bolt)
Needle-nose pliers (to squeeze clip on starter)
New Knock sensor


Remove Bolts highlighted in Red. Pay attention to the hidden two pointed out by the arrow.
http://i1215.photobucket.com/albums/cc516/PortMaster1/KnockSensor/1_Bolts.jpg

Hidden bolt from behind
http://i1215.photobucket.com/albums/cc516/PortMaster1/KnockSensor/2_backsidebolt.jpg

Loosen this bolt so you can move the battery enough to access the "hidden" bolt.
http://i1215.photobucket.com/albums/cc516/PortMaster1/KnockSensor/3_batterybolt.jpg

Remove bolt and radiator bracket. You can flex your front fascia just enough to get a ratchet in there SAFELY.
http://i1215.photobucket.com/albums/cc516/PortMaster1/KnockSensor/4_frontfascia.jpg


Remove bolts and push this back so it is not on top of rail anymore. You can do this at the same time of removing the whole rail.
http://i1215.photobucket.com/albums/cc516/PortMaster1/KnockSensor/5_radmove.jpg

Disconnect fan harness (squeeze plug and pull)
http://i1215.photobucket.com/albums/cc516/PortMaster1/KnockSensor/6_fandisconnect.jpg

You can now remove the rail
http://i1215.photobucket.com/albums/cc516/PortMaster1/KnockSensor/7_moved.jpg

Remove the plug from the knock sensor and then remove the knock sensor
http://i1215.photobucket.com/albums/cc516/PortMaster1/KnockSensor/8_SensorIN.jpg

New and Old
http://i1215.photobucket.com/albums/cc516/PortMaster1/KnockSensor/10_oldnewknock.jpg

Install new knock sensor by hand first! DO NOT USE THE SOCKET YET. Make sure it threads all the way to the block if it doesn't then you are cross threading it. I had trouble getting mine started.

New knock sensor installed
http://i1215.photobucket.com/albums/cc516/PortMaster1/KnockSensor/11_installed.jpg

Now you can reassemble just follow the reverse directions

FIRST!

Push the gray wire clip back in the starter that is securing the wire
Connect wire back to knock sensor
connect fan wire
Make sure the Radiator bracket lines back up. If not then shift your radiator around. Also, do not tighten your bolts down until they are all in. Just get them started.

reinstall bolts
tighten battery back
And anything else I forgot! HEHE

Si Speed 317
07-31-2012, 10:28 AM
Reputation given :thumb: Great DIY!!!

fre$h si
08-01-2012, 03:39 PM
Wow I've been wondering where that thing was at haha. What causes them to go bad?

VTECFRED
08-01-2012, 04:01 PM
Wow I've been wondering where that thing was at haha. What causes them to go bad?

That is a good question. I have no idea! I had to replace mine 3 times in a month.

It would read massive knocks like during a pull over 200 knocks in each cylinder then it went to limp mode I tried everything to reset it but the error kept coming back until I replaced it.

A week later the new one did the same exact thing.

Im on my 4th one and have had it since dec 2011 so I have no idea why the others went bad

Sent from my Galaxy Nexus

Spaz
08-03-2012, 09:19 AM
knock sensors suck to replace... luckily I have little hands I don't remove any of the radiator support parts like you did. I sneak my arm up from the bottom but it sucks. I will definitely try it your way next time!

Si Speed 317
08-04-2012, 08:54 PM
^ I envy you in this situation.

Si Speed 317
08-01-2013, 12:09 AM
Well, I will be using this to install my new ported & polished intake manifold tomorrow! Made by Spaz. Thanks in advance VTECFRED

aLmk
08-01-2013, 08:50 AM
I used this DIY to replace my knock sensor a few months ago. It was on point! Took me maybe 45 mins taking my time, first time doing it. So it's really not too bad!

Si Speed 317
08-01-2013, 03:47 PM
Nice! I'll be swapping my IM at the same time, and possibly my fuel return too. So it'll be a few hours at the least. I need a 24mm deep socket and a 1/2" drive tho

aLmk
08-01-2013, 05:00 PM
Nice! I'll be swapping my IM at the same time, and possibly my fuel return too. So it'll be a few hours at the least. I need a 24mm deep socket and a 1/2" drive tho
Ya all I had to pick up was the 24mm deep socket. You may want to get a 3/8-1/2 adapter to use that socket on a smaller wrench. I can't remember if there was a whole lot of room in there for a large 1/2 drive wrench or not.

Si Speed 317
09-06-2013, 02:36 AM
I used this for my IM swap. Worked well, I didn't know I'd need a bunch of extra stuff to remove the IM but you live and you learn! Thanks a lot for this VTECFRED, your DIY was a great help for me.

Before:
http://img.tapatalk.com/d/13/09/06/4ymage3a.jpg

During:
http://img.tapatalk.com/d/13/09/06/pu8y5u4u.jpg

http://img.tapatalk.com/d/13/09/06/8y5u5una.jpg

After:
http://img.tapatalk.com/d/13/09/06/jydy9e6e.jpg
Behind the scenes photoshoot ;)

http://img.tapatalk.com/d/13/09/06/suvygane.jpg

aLmk
09-06-2013, 08:23 AM
Is it just a painted rbc?

1SLOWFG2
09-06-2013, 10:02 AM
Is it just a painted rbc?

My guess is it was cut open ported and polished up, welded the all welds grind down and shaved and the painted . That's sooo much work lol

Si Speed 317
09-07-2013, 01:50 AM
Is it just a painted rbc?
Visually, shaved and painted. But inside, it's nicely PnP'd.

My guess is it was cut open ported and polished up, welded the all welds grind down and shaved and the painted . That's sooo much work lol

Yup! Left a liiiittle bit of welding underneath for 'proof' lol.

Live Plants. Peep both the TB and head flange.
http://img.tapatalk.com/d/13/09/07/edydy6yj.jpg

http://img.tapatalk.com/d/13/09/07/jynure9a.jpg

aLmk
09-07-2013, 07:50 AM
Have a before picture? I've never had my IM off, don't know what it looks like.

VTECFRED
09-09-2013, 04:34 PM
Damn that looks clean! Nice work there! Is that powder coated?

Sent from my SCH-I535 using Tapatalk 2

PetefromtheStreets
09-09-2013, 10:30 PM
Damn that looks clean! Nice work there! Is that powder coated?

Sent from my SCH-I535 using Tapatalk 2

It's rattle can'd I believe. I never could get it to work like this guy does.

s4 IG-petefromthestreets

Si Speed 317
09-10-2013, 01:25 AM
Have a before picture? I've never had my IM off, don't know what it looks like.
Of the inside/runners? I don't, but Adm_rsx can get me pics of the inside of a stock OEM RBC IM :thumb:

Damn that looks clean! Nice work there! Is that powder coated?

Sent from my SCH-I535 using Tapatalk 2

It's rattle can'd I believe. I never could get it to work like this guy does.

s4 IG-petefromthestreets
What Adam said. It's rattle canned! I love how it came out, im happy with it