WJ 1999 4.7 codes P0130, P0136, P1491, P0731 Please help - Page 2 - Jeep Garage - Jeep Forum

Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WJ > Troubleshooting/Problems

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #13  
Old 05-23-2015, 10:08 AM
Member
 
Join Date: May 2015
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 620
jbanks25 is on a distinguished road
Re: WJ 1999 4.7 codes P0130, P0136, P1491, P0731 Please help

I think it actually may be bad PCM connections. I got the Jeep nice and hot today and then moved the radiator overflow out of the way. I then jiggled each of the connectors at the ECU. The vehicle stalled out immediately when handling the far left one. I pulled the ECU and looked at it and looks like the one that the owners I got it from put in was a Mopar reman unit sourced from a junkyard. I know after they swapped it in the Jeep still didn't run right, so I suspect they cheaped out and got burnt. They gave up on it right after that.

Reply With Quote
Sponsored Links
Advertisement
 
  #14  
Old 05-23-2015, 04:35 PM
Member
 
Join Date: May 2015
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 620
jbanks25 is on a distinguished road
Re: WJ 1999 4.7 codes P0130, P0136, P1491, P0731 Please help

Also, I found some documentation that says I am in limp mode, but it's a form of limp mode caused by computer communications failure.

* Logical shutdown with recovery -- The TCM operates the transmission at a steady preset pressure value and uses 1st and 3rd gears only while in Drive. The transmission will resume normal operation if the problem goes away.
Reply With Quote
Reply

Thread Tools
Display Modes

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
CEL Codes and Help Please. KillaJeep4569 Troubleshooting/Problems 2 04-12-2015 08:02 PM
2010 grand DTC codes,need help please tardis Troubleshooting/Problems Discussion 1 05-30-2014 08:31 PM
codes P0731,P0732,P0734 dbear Troubleshooting/Problems 9 07-18-2013 10:34 PM
P0731 Error Code / Emissions KathieAlvarez Troubleshooting/Problems 1 02-29-2012 03:02 PM
P0731 Gear 1 Ratio Incorrect jas535 Troubleshooting/Problems 1 08-14-2010 03:59 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 10:12 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.