- Reply to Topic
Thread: 2003 TJ No idle ghosts Reply to Thread

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


  Additional Options
Miscellaneous Options

  Topic Review (Newest First)
09-02-2017 06:57 PM
2003 TJ No idle ghosts

I'm no mechanic and this 4 cyl. 2.4 L 2003 wrangler has some ghosts, so it should be a fun project. I just towed it back to Salt Lake from the desert where a small shop and dealer both looked at it shortly without figuring it out. Any input is much appreciated

1) Won't start without lots of gas, absolutely no idle. Doesn't run well at all.
2) codes say all cylinders are misfiring
3) 2/4 sparks coming from coil are super weak, replaced it but same side of coil is weak
4) Fuel pump turns on with key for about a second, pressure builds slowly, takes 3-4 on/off cycles before reaching
45psi, then while cranking or running the pressure stays at 45
5) Flow to injection rail is constant during the 1 second the pump turns on, then flow is uninterrupted while cranking or running
6) was blowing fuel injector fuses but it might have been a wiring issue, hasn't blown one on me today

Things we've looked at and replaced...
1. Spark plugs
2. ECM and local wiring
3. Ignition coil
4. Compression is okay
5. Timing belt is on time

I might start looking to the air next (unless theres other ideas!
IAC, vacuum leaks

Posting Rules  
You may post new threads
You may 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

For the best viewing experience please update your browser to Google Chrome