Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

Code 9 CYP- cylinder sensor???

Thread Tools
 
Search this Thread
 
Old Mar 22, 2009 | 05:56 PM
  #1  
jdmsi22's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Mar 2007
Posts: 92
Likes: 0
From: The middle of an Orange Grove, Fl, US
Default Code 9 CYP- cylinder sensor???

Ok so I have managed to get the code and it is throwing code 9 CYP - cylinder sensor. I have read that this means buying a new distributor because the censor can not be purchased by itself. Is this something I need to replace now? Will it cause harm to the engine? I just replaced the rotor, cap, and wires not too long ago.
Reply
Old Mar 23, 2009 | 07:28 AM
  #2  
mage182's Avatar
Honda-Tech Member
20 Year Member
 
Joined: Oct 2004
Posts: 99
Likes: 1
From: NY, USA
Default Re: Code 9 CYP- cylinder sensor???

When I used to have this problem and replaced the same parts you did I found that in the warm weather it wasn't a problem. The car ran decent. But for whatever reason once it got cold the car idled horribly.

I ended up buying a new distributor from Distributor King from ebay cause they had the best price. Everything has been find since.
Reply
Old Apr 6, 2009 | 11:28 AM
  #3  
jdmsi22's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Mar 2007
Posts: 92
Likes: 0
From: The middle of an Orange Grove, Fl, US
Default Re: Code 9 CYP- cylinder sensor???

Originally Posted by mage182
When I used to have this problem and replaced the same parts you did I found that in the warm weather it wasn't a problem. The car ran decent. But for whatever reason once it got cold the car idled horribly.

I ended up buying a new distributor from Distributor King from ebay cause they had the best price. Everything has been find since.
Thanks
Reply
Old Apr 6, 2009 | 01:14 PM
  #4  
honda.lioness's Avatar
Honda-Tech Member
 
Joined: Mar 2008
Posts: 1,022
Likes: 4
Default Re: Code 9 CYP- cylinder sensor???

Originally Posted by jdmsi22
Ok so I have managed to get the code and it is throwing code 9 CYP - cylinder sensor. I have read that this means buying a new distributor because the censor can not be purchased by itself. Is this something I need to replace now? Will it cause harm to the engine? I just replaced the rotor, cap, and wires not too long ago.
If you're lucky there is just a wire to the sensor loose. You really want to get a shop manual and go through the diagnostics for this code. Best case your fuel mileage is worse. Options once you confirm the sensor is not working:

--Yes theoretically one cannot buy a new sensor anywhere without buying a whole new dizzy housing. OEM will run you around $290 at online OEM sites. Advantages: A whole new dizzy housing means three brand new sensors and a new housing wiring harness. Performance/mileage should improve. I think all these sensors degrade with time to the point I'd say replace the housing every 150k miles/10 years.
--Take off the old sensor, inspect the wiring and clean it up. For some clues, see http://honda.lioness.googlepages.com/distributorbearing . No guarantees this will fix the problem.
--Go to a junkyard and pull off a second-hand sensor. OEM shop manuals actually do have directions for removing the CYP sensor.

If you do any kind of rebuild, consider replacing the o-ring and maybe the oil seal as shown in the illustration at the site above.
Reply
Old Apr 14, 2009 | 12:17 PM
  #5  
jdmsi22's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Mar 2007
Posts: 92
Likes: 0
From: The middle of an Orange Grove, Fl, US
Default Re: Code 9 CYP- cylinder sensor???

Originally Posted by honda.lioness
If you're lucky there is just a wire to the sensor loose. You really want to get a shop manual and go through the diagnostics for this code. Best case your fuel mileage is worse. Options once you confirm the sensor is not working:

--Yes theoretically one cannot buy a new sensor anywhere without buying a whole new dizzy housing. OEM will run you around $290 at online OEM sites. Advantages: A whole new dizzy housing means three brand new sensors and a new housing wiring harness. Performance/mileage should improve. I think all these sensors degrade with time to the point I'd say replace the housing every 150k miles/10 years.
--Take off the old sensor, inspect the wiring and clean it up. For some clues, see http://honda.lioness.googlepages.com/distributorbearing . No guarantees this will fix the problem.
--Go to a junkyard and pull off a second-hand sensor. OEM shop manuals actually do have directions for removing the CYP sensor.

If you do any kind of rebuild, consider replacing the o-ring and maybe the oil seal as shown in the illustration at the site above.
Great info. Thanks. I did however end up replacing the entire dizzy.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
kirbyman
Honda CRX / EF Civic (1988 - 1991)
5
Oct 20, 2024 07:35 PM
jrv2u
Honda Prelude
4
Feb 18, 2009 04:08 PM
jedb18
Honda CRX / EF Civic (1988 - 1991)
3
May 31, 2008 12:32 PM
Rod.
Forced Induction
8
Jan 2, 2005 11:33 AM




All times are GMT -8. The time now is 07:53 AM.