99-Honda accord

1999 HONDA ACCORD
120,000 MILES • 4 CYL • 2WD • AUTOMATIC
Avatar
GANESANAMBI
  • MEMBER
  • 4 POSTS
My 1999 Honda accord engine USDM-f23A1 was replaced last week. My old engine blew the gasket. I replaced with JDM f23a engine. After install engine starts well but the acceleration is not good. If I try accelerate more than 2500 rpm engine is shutting down!
Below are the details:
No engine light
Intake taken from old engine put to jdm engine.
Exhaust manifold changed to JDM.
Knock sensor was broken in JDM and it was replaced with new one from Advanced auto parts.
Oil and coolant temp sensor used from JDM engine.
Please let me know what will be the issue.

Thanks
Jun 2, 2011 at 5:14 AM
Avatar
WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
Can you be more specific? Shutting down? I the engine actually shutting off, misfiring, losing power, run good at other RPM ranges. etc?
Jun 2, 2011 at 5:39 AM
Avatar
GANESANAMBI
  • MEMBER
  • 4 POSTS
Engine starts and runs. Light vibration I can feel.
When I press gas pedal (not driving) the engine accelerate and when rpm reached between 2500 to 3000 it struggles and slows down as if coming to shut the engine. If I stop pressing the gas pedal
Jun 2, 2011 at 7:09 AM
Avatar
WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
[quote]If I stop pressing the gas pedal ..........???????[/quote]
Jun 2, 2011 at 7:29 AM
Avatar
GANESANAMBI
  • MEMBER
  • 4 POSTS
Engine starts and runs. Light vibration I can feel.
When I press gas pedal (not driving) the engine accelerate and when rpm reached between 2500 to 3000 it struggles and slows down as if coming to shut the engine. If I stop pressing the gas pedal engine comes back and start to run again !
Jun 2, 2011 at 8:20 AM
Avatar
WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
There are about 3 things that are known to act like that....
1) Low fuel pressure
2) bad coil
3) Plugged exhaust
Jun 2, 2011 at 8:49 AM
Avatar
GANESANAMBI
  • MEMBER
  • 4 POSTS
Please let me know what is a bad coil means?
thanks
Jun 2, 2011 at 9:13 AM
Avatar
WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
Ignition coil defective
Jun 2, 2011 at 10:58 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle