1990 2.5 turns off - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 07-30-2011, 12:35 PM   #1
Join Date: Jul 2011
Posts: 4
1990 2.5 turns off

My 1990 wrangler 2.5 after about 20 min or when warmed up idle starts to rev high and then drops and vehicle dies. Replaced more parts then I can think of and checked wiring. Parts replaced spark plugs,cap, rotors,wires,fuel filter,o2 sensor,egr, coolant temp sensor,tps sensor, idle control,crank position sensor,map sensor,ecm, and also found pin32 and pin 5 at ecm damaged replaced pins. any new ideas would be helpful.

18bluewarrior is offline   Quote
Old 07-30-2011, 12:40 PM   #2
Join Date: Aug 2010
Location: somewhere....
Posts: 11,188

try the YJ tech section.good luck.

redjeeper is offline   Quote
Old 07-31-2011, 06:46 PM   #3
Join Date: Jan 2010
Location: Las Cruces, NM
Posts: 2,303
Check the manifold air temp sensor.
(Sold)1994 Jeep Wrangler 2.5L, Bestop top
/w steel half door and slider windows
5 speed, 2.5" lift, 31" tires,rack lights
Garyk is offline   Quote
Old 07-31-2011, 07:03 PM   #4
jfbilbro's Avatar
Join Date: Jul 2011
Location: Central Alabama
Posts: 780
more info??.....does it start right back up after this shenanigan, or is it hard to start after?
jfbilbro is offline   Quote
Old 08-01-2011, 01:05 AM   #5
Join Date: Jul 2011
Posts: 4
Sometimes it starts right up with a high idle and sometimes its hard to start about 50/50
18bluewarrior is offline   Quote

Thread Tools

Posting Rules
You may not post new threads
You may not 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
1990 YJ valve cover leaks..with pics athens4life YJ Tech Forum 4 07-09-2011 11:59 PM
YJ Turns Signals are intermittent hrhansoniv YJ Tech Forum 6 05-30-2011 08:15 PM
Please help! Can't make complete left turns!! Chavser16 TJ General Discussion Forum 14 05-24-2011 11:06 AM
noise/shake from Rear axle on slow turns. GoldenSahara00 TJ General Discussion Forum 2 05-07-2011 04:19 PM
1990 Wrangler - fuel pump & sending unit 93Gr YJ Tech Forum 15 05-11-2009 09:47 AM

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 11:09 PM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC