Go Back   Honda-Tech > Honda and Acura Model-Specific Technical Forums > Honda Prelude
Sign in using an external account
Register Forgot Password?
Search


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
Old 12-04-2009, 09:08 AM   #1
Honda-Tech Member
 
Join Date: Oct 2009
Posts: 18
iTrader Rating: (0)
Icon6 knock sensor on my H-22

what are some of the symptoms of not having or a bad knock sensor. I don't have a KS in my car right now and I'm having all sorts of issues I just wanna make sure by replacing the ks it will fix em. my oil light comes on all the time and I check my oil constantly. it feels like it has a govenor on it. V-tech runs bad if at all. the car cuts out at high rpms. smells like its running really rich and bad gas mileage. are all these things cause of the KS?

Last edited by lango-H22; 12-04-2009 at 09:32 AM.
lango-H22 is offline   Reply With Quote
Old 12-04-2009, 05:22 PM   #2
Honda-Tech Member
 
AndyD's Avatar
 
Join Date: Aug 2002
Location: MD, USA
Posts: 5,478
iTrader Rating: (0)
Default Re: knock sensor on my H-22

Don't wait for a response. Just get a new knock sensor. Then go from there.
__________________
'92 Accord Sedan w/H22A. '92 Prelude Si 4WS engineless. '89 240SX w/SR20DET.
Vouch thread
CB7 F22A1 H22 5spd swap parts FS
AndyD is offline   Reply With Quote
Old 12-04-2009, 05:56 PM   #3
Honda-Tech Member
 
Join Date: Oct 2008
Location: Jacksonville Beach, Florida, United States
Posts: 1,494
iTrader Rating: (0)
Default Re: knock sensor on my H-22

You could either have bad oil pressure or a bad oil sending unit. First thing I would do is drop the oil pan, remove the pickup screen and check it out and clean it if necessary. If it's clean then the oil sending unit could be bad and giving you a false reading. You're VTEC system relies on oil pressure to work properly if at all so again, check the pickup in the pan. If you don't have a knock sensor then the ECU will retard the timing a bit and possibly disable VTEC, you definitely need to have one and they aren't cheap. Oh and if you're running a JDM H22a with the JDM P13 ecu then you do have a governor, all JDM cars do. Pray you haven't hurt anything driving it the way you have with low oil pressure...
__________________
93 BB2 - JDM H22a/T2W4 Euro R transmission
Quote:
Originally Posted by PirateMcFred View Post
Everyone's ****'s broken and they can't find a Helm Manual to read.
minilogoguy18 is offline   Reply With Quote
Old 12-04-2009, 11:06 PM   #4
Honda-Tech Member
 
BigBlock22's Avatar
 
Join Date: May 2008
Location: San Diego
Posts: 982
iTrader Rating: (0)
Send a message via AIM to BigBlock22
Default Re: knock sensor on my H-22

the vtec will not engage if the ecu cannot read the knock sensor or if you have serious knock from something like pining. and the computer will go into what they call limp mode (why it seems governed). you can either try bypassing the knock with a piezoelectric sensor from radio shack which cost less than $5 (although you have to find a good location to put it on) or do the wise thing and buy a knock sensor. it would be a good idea if you got an OBD scanner and checked for any other codes. IF THE OIL LIGHT DOES NOT GO AWAY DO NOT DRIVE THE CAR. you will only hurt your engine by driving the car without adequate oil pressure.
BigBlock22 is offline   Reply With Quote
Old 12-05-2009, 07:41 AM   #5
Honda-Tech Member
 
Join Date: Aug 2005
Location: Macon, GA, USA
Posts: 1,319
iTrader Rating: (0)
Default Re: knock sensor on my H-22

unless you are getting a code 23, you do not need a new knock sensor. check your codes 1st, then report back.
Apex1972 is offline   Reply With Quote
Old 12-05-2009, 09:04 AM   #6
Honda-Tech Member
 
Join Date: Oct 2008
Location: Jacksonville Beach, Florida, United States
Posts: 1,494
iTrader Rating: (0)
Default Re: knock sensor on my H-22

^He said in his original post that he doesn't have one at all.
__________________
93 BB2 - JDM H22a/T2W4 Euro R transmission
Quote:
Originally Posted by PirateMcFred View Post
Everyone's ****'s broken and they can't find a Helm Manual to read.
minilogoguy18 is offline   Reply With Quote
Old 12-05-2009, 11:54 AM   #7
Honda-Tech Member
 
Join Date: Aug 2005
Location: Macon, GA, USA
Posts: 1,319
iTrader Rating: (0)
Default Re: knock sensor on my H-22

Quote:
Originally Posted by minilogoguy18 View Post
^He said in his original post that he doesn't have one at all.

well he needs to get one then tell us what it do huh
Apex1972 is offline   Reply With Quote
Old 12-05-2009, 06:04 PM   #8
Honda-Tech Member
 
BigBlock22's Avatar
 
Join Date: May 2008
Location: San Diego
Posts: 982
iTrader Rating: (0)
Send a message via AIM to BigBlock22
Default Re: knock sensor on my H-22

OP, just wanted to add to what i mentioned before... if you decided to replace the oil pressure sensor and the oil light (red oil light) still comes on after you replaced the sensor then it would be best not to drive the car until you resolve the oil pressure problem. i would even consider checking the wire harness just to make sure power is making it to the sensor
BigBlock22 is offline   Reply With Quote
Old 12-01-2012, 12:31 AM   #9
Honda-Tech Member
 
Join Date: Mar 2012
Posts: 23
iTrader Rating: (0)
Default Re: knock sensor on my H-22

Ok sorry for jumping in on the thread lango-h22
I have a 99 accord w/ f23a motor
It has a broken knock sensor and I noticed since the knock sensor broke my car Boggs out when I get to 4000rpms but that's only when I floor it so that VTEC can crack(car is auto) if I drive normal and tranny shift on its own it drives fine..can the VTEC bogging be caused by the knock sensor??
[[GENESI][EK9]] is offline   Reply With Quote
Old 12-01-2012, 07:45 AM   #10
Trial User
 
Join Date: Oct 2012
Posts: 4
iTrader Rating: (0)
Default Re: knock sensor on my H-22

I have an 01 prelude and my knock sensor is broken and has been broken. Car runs fine and taps into the vtech fine. I haven't replaced it because I don't need a $90 part to tell me my engine is knocking. I have ears and they work just fine.
twistedking2006 is offline   Reply With Quote
Old 12-02-2012, 12:12 AM   #11
Honda-Tech Member
 
Join Date: Dec 2008
Posts: 7,104
iTrader Rating: (0)
Default Re: knock sensor on my H-22

Quote:
Originally Posted by [[GENESI][EK9]] View Post
Ok sorry for jumping in on the thread lango-h22
I have a 99 accord w/ f23a motor
It has a broken knock sensor and I noticed since the knock sensor broke my car Boggs out when I get to 4000rpms but that's only when I floor it so that VTEC can crack(car is auto) if I drive normal and tranny shift on its own it drives fine..can the VTEC bogging be caused by the knock sensor??
Yes.

Quote:
Originally Posted by twistedking2006 View Post
I have an 01 prelude and my knock sensor is broken and has been broken. Car runs fine and taps into the vtech fine. I haven't replaced it because I don't need a $90 part to tell me my engine is knocking. I have ears and they work just fine.
As long as you don't buy any bad gas you probably won't have a problem. However, I'm not sure what you plan on doing if your engine does knock.
holmesnmanny is offline   Reply With Quote
Old 12-02-2012, 07:15 AM   #12
Honda-Tech Member
 
Join Date: Mar 2012
Location: New York
Posts: 15
iTrader Rating: (0)
Default Re: knock sensor on my H-22

The KS was put there for a reason...if you want to run the risk of not having then don't replace it. Spending 100 bucks is a small price to pay compared to buying/rebuilding your motor...
Shiloh51933 is offline   Reply With Quote
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
knock sensor replaced but still faulting for P0325 KS. jnwalker Honda Accord (1990 - 2002) 5 05-02-2014 01:17 PM
help... (knock sensor) skylerreniger Tech/Misc 10 01-19-2013 05:34 PM
H22 Knock Sensor Blue94Accord Honda Accord (1990 - 2002) 7 08-10-2009 09:08 PM
H22 swap, KS problems tommyistommy Honda Prelude 7 01-05-2009 02:53 PM
Knock Sensor.......do they actually go bad? 4g4me Honda Prelude 6 04-23-2004 07:52 PM


Tags
bad, car, code, drive, h22a, honda, hurt, knock, oil, pressure, sender, sensor, symptoms, tech, unit

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Pingbacks are On
Refbacks are On



Join Honda-Tech.com

All times are GMT -8. The time now is 10:28 PM.



2014 Copyright, InternetBrands Inc.
Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.

Honda and the Honda marquee are registered trademarks of the American Honda Motor Company, Inc. Neither American Honda Motor Company nor its subsidiaries or affiliates shall bear any responsibility for Honda-Tech.com content, comments, or advertising. Honda-Tech.com is not affiliated with American Honda Motor Company in any way. American Honda Motor Company does not sponsor, support, or endorse Honda-Tech.com in any way. Copyright/trademark/sales mark infringements are not intended or implied.
Emails & Contact Details