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

Automatic gearbox on b20vtec (noob questions)

Thread Tools
 
Search this Thread
 
Old Nov 12, 2018 | 05:48 AM
  #1  
Tie Ee Fei's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Sep 2018
Posts: 43
Likes: 0
Default Automatic gearbox on b20vtec (noob questions)

Before anybody shoot me just get a manual..
​​​ i knw manual is the best and i going to replace at the future..

But now i stick with my automatic while saving money for a manual..
Okay heres the question.

It drive n shifting gear okay.. From 1 to 4.. But problem only happen when full throttle (pedal to Medal when the rpm reach max rpm i using p28 ecu rpm cut at 8.5k) there is a slightly delay like 2 or 3 sec before engage next gear.

Pardom my English hope everyone's knw what i try to say.

Thanks


​​



​​
Reply
Old Nov 12, 2018 | 06:50 AM
  #2  
TomCat39's Avatar
Hysterically Calm
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2013
Posts: 10,439
Likes: 597
Default Re: Automatic gearbox on b20vtec (noob questions)

If I recall, the automatic is a 4 speed automatic. So it's the torque converter lock up that you are referencing if 1-4 is working fine.

Lock up occurs for fuel economy and when you romp on it, it unlocks and drops back to normal 4th gear. It's not surprising it's not engaging immediately when red lined and floored (pedal to the metal).

Personally, I'm surprised a P28 (D series ECU) is operating a B series automatic without issues. I know on D series the ECU TCM controls 4th gear and the Lock up functions. Be happy it's working at all.
Reply
Old Nov 12, 2018 | 08:24 AM
  #3  
tony_2018's Avatar
Fish Twig
 
Joined: Nov 2005
Posts: 15,554
Likes: 309
From: Still hunting that foo up there
Default Re: Automatic gearbox on b20vtec (noob questions)

Tom, there's really not a lot of details in that post to go off of....
Reply
Old Nov 12, 2018 | 01:43 PM
  #4  
Tie Ee Fei's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Sep 2018
Posts: 43
Likes: 0
Default Re: Automatic gearbox on b20vtec (noob questions)

Originally Posted by TomCat39
If I recall, the automatic is a 4 speed automatic. So it's the torque converter lock up that you are referencing if 1-4 is working fine.

Lock up occurs for fuel economy and when you romp on it, it unlocks and drops back to normal 4th gear. It's not surprising it's not engaging immediately when red lined and floored (pedal to the metal).

Personally, I'm surprised a P28 (D series ECU) is operating a B series automatic without issues. I know on D series the ECU TCM controls 4th gear and the Lock up functions. Be happy it's working at all.
Yeap i running with P28 no issues.
And thanks Tom. for clarify. I just to make sure everything is good..
May looking for b16 manual gearbox swap. At the future ��
Reply
Old Nov 13, 2018 | 07:36 AM
  #5  
TomCat39's Avatar
Hysterically Calm
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2013
Posts: 10,439
Likes: 597
Default Re: Automatic gearbox on b20vtec (noob questions)

Originally Posted by tony_2018
Tom, there's really not a lot of details in that post to go off of....
True but we do know it's a B series motor so should be a b series automatic and it's a d series ECU. My post is based on these assumptions.
Reply
Old Nov 13, 2018 | 07:47 AM
  #6  
tony_2018's Avatar
Fish Twig
 
Joined: Nov 2005
Posts: 15,554
Likes: 309
From: Still hunting that foo up there
Default Re: Automatic gearbox on b20vtec (noob questions)

Not gonna work properly but thats all I can give.
Reply
Old Nov 13, 2018 | 08:28 AM
  #7  
TomCat39's Avatar
Hysterically Calm
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2013
Posts: 10,439
Likes: 597
Default Re: Automatic gearbox on b20vtec (noob questions)

One curiosity is, does the b series transmission operate the same as d series with 1-3 being hydraulically/mechanically controlled and 4th and lock-up being TCM controlled?
This is the other assumption I had as OP did say 1-4 seemed to work normal"ish"ly. And the lock-up also seemed to operate fairly close to design.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
92hatch_cx-t
Honda Civic / Del Sol (1992 - 2000)
10
Jan 11, 2007 12:53 PM
Charlie Moua
Acura RSX DC5 & Honda Civic EP3
11
Dec 31, 2005 04:23 PM
honda93
Road Racing / Autocross & Time Attack
3
Oct 18, 2005 04:59 AM
JonnySBeee...
Tech / Misc
2
Apr 3, 2005 06:53 PM
civicmark
Audio / Security / Video
6
Jan 5, 2003 09:06 PM




All times are GMT -8. The time now is 08:00 PM.