Need Help With Fuel Injection Problems - Pirate4x4.Com : 4x4 and Off-Road Forum
 
Pirate4x4.Com : 4x4 and Off-Road Forum  

Go Back   Pirate4x4.Com : 4x4 and Off-Road Forum > Brand Specific Tech > Jeep - Hardcore Tech
Notices

Reply
 
Share Thread Tools Display Modes
Old 10-08-2002, 09:18 PM   #1 (permalink)
Registered User
 
Join Date: Feb 2002
Member # 10331
Location: South Lake Tahoe, CA
Posts: 36
Red face Need Help With Fuel Injection Problems

PLEASE IF YOU HAVE ANY IDEAS LET ME KNOW

I HAVE A 258 IN LINE 6 WITH THE J.F.I. ELECTRO MOTIVE FUEL INJECTION ON IT. IT STARTED RUNNING ROUGH ON THE CON ON THE 4TH, BUT MADE IT HOME. LAST TIME I WENT IT GOT WORSE AND NOW IT WONT HARDLY RUN AT ALL. IT SEEMS TO IDLE DECENT BUT AT HIGH RPMS IT SPITS SPUTTERS AND BACK FIRES THEN DIES. I HAVE TALKED TO OTHERS AND TRIED SOME THINGS BUT NEED SOME MORE ADVICE I HOPE SOMEONE ELSE HAS HAD THIS PROBLEM. THANKS LETME KNOW

BUCK
BuckNBronco is offline   Reply With Quote Quick reply to this message
Old 10-08-2002, 10:50 PM   #2 (permalink)
Registered User
 
Join Date: Apr 2001
Member # 3976
Location: College Station, Tx
Posts: 816
Send a message via ICQ to CJ5-Man Send a message via AIM to CJ5-Man
http://www.tamor.org/techreports/jeep/efi/default.htm

theres some troubleshooting info there at the bottom. might help
CJ5-Man is offline   Reply With Quote Quick reply to this message
Sponsored Links
Old 10-09-2002, 08:10 PM   #3 (permalink)
Registered User
 
Join Date: Feb 2002
Member # 10331
Location: South Lake Tahoe, CA
Posts: 36
ttt
BuckNBronco is offline   Reply With Quote Quick reply to this message
Old 10-10-2002, 06:38 AM   #4 (permalink)
Registered User
 
Join Date: Jun 2001
Member # 5577
Location: Nowhere
Posts: 1,759
SOUNDS LIKE YOU"RE NOT GETTING ENOUGH FUEL!!!!! CHECK YOUR FUEL FILTER FOR CRAP AND YOUR FUEL PUMP FOR PRESSURE OUTPUT!!!!!

WHY ARE WE YELLING!?!?!?!?!?!?

HTH,
JAKE
__________________
It's all here before your eyes / Safety is a big disguise / That hides among the other lies
Jakesteramalamajama is offline   Reply With Quote Quick reply to this message
Old 10-11-2002, 06:59 AM   #5 (permalink)
Registered User
 
Join Date: May 2000
Member # 773
Location: Pilot hill, CA
Posts: 418
Make sure all of your sensors are hooked up and are working correctly. I had a friend with the mopar kit that had about the same problem, and he changed to throttle positioning sensor to fix it. I would check what code the computer is giving you. It will be the same as the factory codes and you can find them in a service manual.
Joe
__________________
miscellaneous debris on four tires AKA Jeep
Rokmycj is offline   Reply With Quote Quick reply to this message
Old 10-11-2002, 09:45 PM   #6 (permalink)
Registered User
 
Randall Edge's Avatar
 
Join Date: Jul 2002
Member # 12992
Location: Savannah, Ga.
Posts: 253
Send a message via AIM to Randall Edge
I've had 3 different FI probs in the past few months.

'00 TJ would run fine, but every few days the check engine light would come on. Bad O2 sensor.

'97 GC intermittently ran rough. It would lean out and backfire. Bad O2 sensor.

'94 Isuzu Rodeo intermittently ran rough. It would run rich, but it only did it on the road so I never smelled raw fuel. I finally noticed the black ring on the tailpipe was getting rather thick. I pulled a lean exhaust code from the computer. Bad O2 sensor.

Sounds like yours is running lean. Either your not getting enough fuel to the injectors or something is telling the computer to run lean.
__________________
'48 Willys Truck.....sorta......
Randall Edge is offline   Reply With Quote Quick reply to this message
Old 10-11-2002, 09:57 PM   #7 (permalink)
Registered User
 
Join Date: Feb 2002
Member # 10331
Location: South Lake Tahoe, CA
Posts: 36
thansk for you help guys ill try it keep bringing me ideas i will post when i find what it is
BuckNBronco is offline   Reply With Quote Quick reply to this message
Old 10-13-2002, 11:12 PM   #8 (permalink)
Registered User
 
Join Date: Jun 2000
Member # 1087
Location: Paso Robles,Ca
Posts: 43
Double check your fuel pressure.
If the pump is going bad it will be fine at idle but will fart out when you need the volume at higher speeds.
vingerroon is offline   Reply With Quote Quick reply to this message
Old 10-15-2002, 07:59 PM   #9 (permalink)
Registered User
 
Join Date: Feb 2002
Member # 10331
Location: South Lake Tahoe, CA
Posts: 36
ttt
BuckNBronco is offline   Reply With Quote Quick reply to this message
Old 10-17-2002, 08:36 PM   #10 (permalink)
Registered User
 
Join Date: Feb 2002
Member # 10331
Location: South Lake Tahoe, CA
Posts: 36
does anyone know any good mechanics in the antioch or oakley area that could help me and be honest with me i cant figure this one out. if you do let me know thanks so much
buck
BuckNBronco is offline   Reply With Quote Quick reply to this message
Old 10-18-2002, 08:47 AM   #11 (permalink)
Banned
 
Join Date: Aug 2002
Member # 13299
Location: Bloomington, IN
Posts: 268
Possibly Fuel pressure, Unlikely the Timing curve, Bad Fuel injectors, Clogged Fuel filter, Hard to tell.
Doc Johnson 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 Pirate4x4.Com : 4x4 and Off-Road 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:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.

** A VERIFICATION EMAIL IS SENT TO THIS ADDRESS TO COMPLETE REGISTRATION!! **

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
Display Modes

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
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 11:16 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 ©2011, Crawlability, Inc.