Fuel tank pressure sensor fix? Installing OBD2/ 96 Engine into a 91 YJ - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Fuel tank pressure sensor fix? Installing OBD2/ 96 Engine into a 91 YJ

Savvy/Currie Aluminum Control ArmsROCK BOTTOM prices on LIFT KITS at Rockridge4wd!! WANT TO December Specials at Jeephut.com

Reply
Unread 06-25-2013, 01:08 AM   #1
enkeivette
Registered User
 
Join Date: Mar 2013
Location: Placentia, CA
Posts: 119
Fuel tank pressure sensor fix? Installing OBD2/ 96 Engine into a 91 YJ

Im installing a 96 Cherokee 4L engine into a 91 YJ. So my question is, how do I deal with the fuel pressure sensor evap issue?

Does the Cherokee pump have an integrated pressure sensor that I could separate and use somehow? Or is there some alternate fuel pressure sensor or resistor to fool the ECU?

enkeivette is offline   Reply With Quote Quick reply to this message
Unread 06-27-2013, 02:21 PM   #2
idaholtby
Registered User
1991 YJ Wrangler 
 
Join Date: Apr 2008
Location: Meridian, Idaho
Posts: 2,554
This sounds like the least of your issues if you intend to use OBDII sensor equipped engine on an OBDI body. What motor/drivetrain is being replaced? I would suggest converting your '96 Cherokee engine to OBDI to match the body. Much easier in the long run. The OBDII can be done, but the pain vs. the gain is not typically there.
idaholtby is offline   Reply With Quote Quick reply to this message
Unread 06-27-2013, 05:48 PM   #3
Noltz
Registered User
YJ Wrangler 
 
Join Date: Oct 2010
Location: Hamilton, Ontario
Posts: 746
Given you're in Cali, I'm guessing to swap to the 4.0 you need to take all the emissions control stuff with you for CARB compliance?

The evap pressure sensor I believe is a separate unit on the vapor line. I Googled images of the fuel tank and sending unit and it's not there. I then did the same with "96 cherokee vapor pressure sensor" and it's showing a stand-alone piece. BTW, this thread is the #1 response to that query.

If it's a separate piece you should be able to Tee it into the vapor line.
__________________
-Noltz
'91 Frankenheep YJ. 4.0, 4" BDS, Richmond 8.8, Titan 12k, 35" KM2's, rust.
'88 YJ, 4.2/4.0 head, +4" & shackles, BFG 33's (sold)
Noltz is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools






Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.