Go Back   Club Lexus Forums > Lexus Model Forums > RX Models > RX - First Generation
Sign in using an external account
Register Forgot Password?


Error code P0330 - Knock sensor replacement

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 04-23-08, 02:27 AM   #1
rfakinbile
Rookie
Trader Score: (0)
 
rfakinbile's Avatar
 
Join Date: Apr 2008
Location: Nigeria
Posts: 52
Post Error code P0330 - Knock sensor replacement

Quite appreciate the contribution of members on the issue of knock sensor replacement and suggestions including pictures of steps taken.
However, the code reader specifie knock sensor bank 2 is bad. Which one of the two is bank 2 (is it the one with longer cable?) .
I already placed order of both sensors and wire harness but I was informed the harnesss is unavailable. Would I be doing anything wrong if I replace only sensors and use the wre harness that I have on the car presently. Any idea?
Why must the wire harness be replaced at all?
Will appreciate early response.
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
rfakinbile is offline   Reply With Quote
Old 04-23-08, 06:46 AM   #2
Lexmex
Super Moderator
Trader Score: (0)
 
Lexmex's Avatar
 
Join Date: Apr 2004
Location: Miami, Florida
Posts: 16,374
Default

A few have done this process on this forum and I might wait for them to give their input. It does require moving the intake manifold. Knock sensor 2 is the one on the front bank (closest to the front of the vehicle), but I generally recommend if you do this to replace both sensors (they are right near each other).

The harness itself should be carefully checked for any issue with the wiring if you decide to reuse it. A mechanic could check the resistance on the harness to make sure you are getting the right juice there.

Keep in mind one of the reasons for this code coming up can be the knock sensor itself, but could also equally be the wiring (short circuit).
__________________
Homepage of my 1999 RX300 AWD
Lexmex is offline   Reply With Quote
Old 04-23-08, 06:50 AM   #3
lexus114
Lexus Champion
Trader Score: (0)
 
lexus114's Avatar
 
Join Date: Aug 2007
Location: Bethlehem Twsp. Pennsylvania
Posts: 3,913
Default

Well,I have not replaced mine yet,but some where on this board,posted not long ago,is a member showing pictures,and explaining how to do this.As far as the wiring is concerned,it should be replaced at the same time.I believe due to heat stress,and if your going in their,may as well replace it too.
lexus114 is offline   Reply With Quote
Old 04-25-08, 10:43 PM   #4
h2osmokey
Driver School Candidate
Trader Score: (0)
 
h2osmokey's Avatar
 
Join Date: May 2007
Location: WA
Posts: 29
Default KS replacement $$

Had it done today at the dealer. . . $1382.46 U.S. !! They just got my federal tax incentive befoe I did.
h2osmokey is offline   Reply With Quote
Old 04-26-08, 06:55 AM   #5
thomas1
Lexus Champion
Trader Score: (0)
 
thomas1's Avatar
 
Join Date: Sep 2006
Location: Sacramento, California
Posts: 2,234
Default

here is the procedure:
http://us.lexusownersclub.com/forums...or+replacement
thomas1 is offline   Reply With Quote
Old 04-28-08, 12:23 AM   #6
rfakinbile
Rookie
Trader Score: (0)
 
rfakinbile's Avatar
 
Join Date: Apr 2008
Location: Nigeria
Posts: 52
Default

Thanks all. I've got all required information, just waiting for the parts to be delivered. Will keep you posted once I get it done.
I don't have problem with the procedure as I have replaced my plugs before and also used the opportunity to service my injector nozzles, the job took me about 4.5hours.
rfakinbile is offline   Reply With Quote
Old 04-28-08, 08:41 AM   #7
knk112
Driver School Candidate
Trader Score: (0)
 
Join Date: Apr 2008
Location: texas
Posts: 13
Default

I have the same code! dealer want 1300+ Said I should replace both sensors, gaskets (3), and spark plugs! YIKES!
knk112 is offline   Reply With Quote
Old 04-30-08, 03:48 AM   #8
rfakinbile
Rookie
Trader Score: (0)
 
rfakinbile's Avatar
 
Join Date: Apr 2008
Location: Nigeria
Posts: 52
Default

All,
Final feedback on this problem. Just replaced it today and transmission shifts perfectly well. Only sensors were replaced, other items re-used. Total hour spent was 2hrs but with one of my technician who has been working with me. No need to replace the gaskets once they are not damaged and the sensors were removed without removing the water hose above it but this has to be done carefully.
Thanks once again.
rfakinbile is offline   Reply With Quote
Old 04-30-08, 05:29 AM   #9
Lexmex
Super Moderator
Trader Score: (0)
 
Lexmex's Avatar
 
Join Date: Apr 2004
Location: Miami, Florida
Posts: 16,374
Default

Congratulations. That water hose can be pretty tricky. I don't like it's design at all.
__________________
Homepage of my 1999 RX300 AWD
Lexmex is offline   Reply With Quote
Old 04-30-08, 07:36 AM   #10
thomas1
Lexus Champion
Trader Score: (0)
 
thomas1's Avatar
 
Join Date: Sep 2006
Location: Sacramento, California
Posts: 2,234
Default

I would have replaced the water hose for general practice, since you were in that area. Oh well its done, 2 hrs. not bad. You are the pro....Glad you fixed it.
thomas1 is offline   Reply With Quote
Old 12-26-09, 10:20 AM   #11
salimshah
Moderator
Trader Score: (0)
 
Join Date: Apr 2001
Location: Austin, TX
Posts: 7,988
Default

I am getting cel + trac on and on scanning, I get p0330.

Funny thing is that trac goes off on turning the ignition off and CEL stays and then after a bit of driving the CEL goes off.

I have not been shut out of overdrive. The running seems normal.

On an uphill. the CEL comes back on. Surprisingly, I do not hear or feel any engine knock. Before cleaning the MAF (a while back) the engine would ping due to lean air preigniting but knock sensor would not show up.


I am concluding that knock sensors need to be replaced [150k miles]. Any other opinion is welcome.

The book says to remove the air-cowl, wiper motor etc to gain access to the back of the air intake. If some one has successfully [with special tools if needed] avoided this step, please let me know.

The toyota DIY [Lexmex link] talks about swing things out of the way instead of disconnecting wires and hoses. Can some one confirm if that is doable?

thomas1 link, unfortunately leads to no photos.

Advice and pointers are welcome.

Salim
salimshah is offline   Reply With Quote
Old 12-26-09, 11:46 AM   #12
rfakinbile
Rookie
Trader Score: (0)
 
rfakinbile's Avatar
 
Join Date: Apr 2008
Location: Nigeria
Posts: 52
Default

I've done it twice. You could bypass removing the wiper Assy. There are some 10mm nuts used to fasten some links that fastens the throttle body to other components, the upper could be removed while standing in front of the engine but the lower has to be removed from under the vehicle. Unfortunately I didn't take any picture while doing the job. Once yo bring out the air filter housing, it would be easier to feel the links I'm referring to.
rfakinbile is offline   Reply With Quote
Old 12-26-09, 02:57 PM   #13
salimshah
Moderator
Trader Score: (0)
 
Join Date: Apr 2001
Location: Austin, TX
Posts: 7,988
Default

rfakinbile:

Did you disconnect the hoses and wires or simply swing the piece out of the way?

Salim
salimshah is offline   Reply With Quote
Old 12-27-09, 04:45 AM   #14
rfakinbile
Rookie
Trader Score: (0)
 
rfakinbile's Avatar
 
Join Date: Apr 2008
Location: Nigeria
Posts: 52
Default

The only hose removed is that of water hose connected to the throttle body. Wires disconnected are those on the throttle body and IACV. Other hoses were simply by-passed.
rfakinbile is offline   Reply With Quote
Old 12-28-09, 10:35 AM   #15
thomas1
Lexus Champion
Trader Score: (0)
 
thomas1's Avatar
 
Join Date: Sep 2006
Location: Sacramento, California
Posts: 2,234
Default

I removed the bolt on the back of the intake without removing the cowling etc. The bolt is just a plain pain. 10mm I believe and the best tool was a 1/4 inch socket drive. the bolt head is located in a u channel which make the use of a gear wrench impossible.
After I removed it and the bracket, just say i MODIEFIED THE U channel support bracket so that a regular gear wrench could be used. I bassically filed the u down to allow this....The rest just requires lots of patience and time. iN THE attached photo note the bracket and bolt circled in red.....Please not this is not the RX however is the same bracket and in the same location....just to give you an idea of what i AM talking about.
Attached Images
 
__________________
1999 RX300
2008 RX400h
Moved up to hybrid land

super home mechanic
Protect our Constitution, Tea Party
Papa to 9, 7 girls, 2 boys

Last edited by thomas1; 12-28-09 at 10:42 AM..
thomas1 is offline   Reply With Quote
Old 12-28-09, 10:35 AM
 
 
 
 
Reply

Tags
1999, bad, bb, circuit, code, es, es300, knock, lexus, location, p0330, sensers, sensor, sensors, time

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -7. The time now is 01:07 AM.

Join ClubLexus
Advertising


Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS


Get all contact info

Content Relevant URLs by vBSEO 3.5.2