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

Code 9, H22 swap.

 
Old 05-12-2019, 10:05 AM
  #1  
Honda-Tech Member
Thread Starter
 
Join Date: Feb 2019
Posts: 4
Default Code 9, H22 swap.

Hi, I have a 98 civic, with an H22a4 swap did myself. Has wireworx swap harness and P28 ecu with hondata S300 v3 done by hamotorsports. Got car running and throwing code 9, so I ordered new distributor and still getting code. Set timing at 16 degrees and double checked that timing belt has not slipped. Car runs horrible and driving it done the road it bucks bad. But when go full throttle the car pulls fine but part throttle or idle it runs rough and rich.
matthewbuck2 is offline  
Old 05-12-2019, 11:08 AM
  #2  
Honda-Tech Member
 
muellersfan's Avatar
 
Join Date: Apr 2018
Posts: 975
Default Re: Code 9, H22 swap.

Code 9 can also be caused by a bad CYP sensor wire or bad ECU.

Ohm test the CYP sensor from the two pins of the ECU connector. Post reading.
muellersfan is offline  
Old 05-12-2019, 11:45 AM
  #3  
Honda-Tech Member
Thread Starter
 
Join Date: Feb 2019
Posts: 4
Default Re: Code 9, H22 swap.

Tested sensor with meter 480 ohms.
matthewbuck2 is offline  
Old 05-12-2019, 12:17 PM
  #4  
Honda-Tech Member
 
muellersfan's Avatar
 
Join Date: Apr 2018
Posts: 975
Default Re: Code 9, H22 swap.

Originally Posted by matthewbuck2 View Post
Tested sensor with meter 480 ohms.
From ECU connector?
muellersfan is offline  
Old 05-12-2019, 04:12 PM
  #5  
Honda-Tech Member
 
Join Date: Feb 2016
Posts: 2,802
Default Re: Code 9, H22 swap.

What @muellersfan said. Unplug the ECU (disconnect the battery first) and measure the resistance of the three distributor sensor circuits from the ECU plug. This test goes through the ECU adapter, the harness wiring, the plugs under the hood, and as a bonus, the distributor itself, all in one shot. Also test those sensor wires for resistance to ground, it should be open circuit.
mk378 is offline  
Old 05-13-2019, 04:13 AM
  #6  
Honda-Tech Member
Thread Starter
 
Join Date: Feb 2019
Posts: 4
Default Re: Code 9, H22 swap.

Originally Posted by mk378 View Post
What @muellersfan said. Unplug the ECU (disconnect the battery first) and measure the resistance of the three distributor sensor circuits from the ECU plug. This test goes through the ECU adapter, the harness wiring, the plugs under the hood, and as a bonus, the distributor itself, all in one shot. Also test those sensor wires for resistance to ground, it should be open circuit.
Yes I did the test as specified all came back good no shorts in the wiring either. But I also did a compression test and itís not looking good. #1- 180 #2- 70 #3 190 #4 180. This would cause a miss from what Iíve found in research. But would it cause this code?
matthewbuck2 is offline  
Old 05-13-2019, 07:48 AM
  #7  
Honda-Tech Member
 
Join Date: Jan 2013
Location: The South - Roll Tide !!!
Posts: 3,437
Default Re: Code 9, H22 swap.

Originally Posted by matthewbuck2 View Post
Yes I did the test as specified all came back good no shorts in the wiring either. But I also did a compression test and itís not looking good. #1- 180 #2- 70 #3 190 #4 180. This would cause a miss from what Iíve found in research. But would it cause this code?
Miss... YES. Code... Nope.
JRCivic1 is offline  
Old 05-13-2019, 01:44 PM
  #8  
Honda-Tech Member
Thread Starter
 
Join Date: Feb 2019
Posts: 4
Default Re: Code 9, H22 swap.

Originally Posted by JRCivic1 View Post
Miss... YES. Code... Nope.
So is the code even worth worrying about at this point?
matthewbuck2 is offline  
Old 05-13-2019, 08:43 PM
  #9  
Honda-Tech Member
 
Join Date: Jan 2013
Location: The South - Roll Tide !!!
Posts: 3,437
Default Re: Code 9, H22 swap.

Originally Posted by matthewbuck2 View Post
So is the code even worth worrying about at this point?
I just chased this code for hours on a friend of mine's track car. Ultimately, it would be nice if you could get the MIL to turn off... but if the engine performs normally and doesn't exhibit any undesirable symptoms such as the lack of VTEC or short revving... I would say run it. Oh, and check your codes often to make sure something else hasn't created a problem.
JRCivic1 is offline  
Old 05-14-2019, 04:16 PM
  #10  
Honda-Tech Member
 
muellersfan's Avatar
 
Join Date: Apr 2018
Posts: 975
Default Re: Code 9, H22 swap.

VERY Low compression in cyl 3 --> definitely fix this problem there FIRST. Then go from there.
muellersfan is offline  
 


Thread Tools
Search this Thread

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: