Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum > P1391 code fixed 97 wranglet

Join Wrangler Forum Today

Thread: P1391 code fixed 97 wranglet Reply to Thread
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the Jeep Wrangler Forum 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 email address for yourself.
Email Address:


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.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
09-05-2012 04:19 PM
P1391 code fixed 97 wrangler

I have been searching for a fix on my daughters 97 Wrangler 4 cyl auto for awhile. Not sure if this was a prexisting problem, due to the fact i just bought this Wrangler with a bad engine and it had been sitting for 3 years. I Replaced the motor myself with a remanufactured engine. Pretty easy job if you have all the tools. So it runs well, no missing but the check engine light repeatedly coming on after a few miles, code read 1391 which is the cam sensor or crankshaft sensor not sensing. Replaced both, still not fixed.

Got to the Point it was time for a professional assessment of the problem. Took it to a small local shop I felt comfortable with. The tech said the 1391 was caused by a loss of communication with those sensors above 1500 rpm's. He just needed to find out why.

While trouble shooting it, he noticed the distributor has excessive lateral play in the distributor shaft. Only had 71 K miles on it.He Installed a remanufactured distributor. Problem fixed. California smog passed also. So happy.

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

All times are GMT -5. The time now is 09:33 AM.

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