Go Back   LS1TECH > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Fueling & Injection
Sign in using an external account
Register Forgot Password?
Search

Fueling & Injection
Fuel Pumps | Injectors | Rails | Regulators | Tanks

Fuel pump cutting out randomly

Reply
 
Thread Tools Search this Thread
Old 03-18-2012, 07:48 PM   #1
Launching!
 
Trader Rating: 0
Join Date: Oct 2011
Location: Phenix, AZ
Posts: 277
Default Fuel pump cutting out randomly

So today i took my car out and i noticed the car losing power for a split second and then the power kicking back in. i have a wideband in the car and it was reading that the car was going dead lean (22-1 a/f) then going back to 14-1 a/f ratio. (it stays around there when just crusing around). this happend about 4 times today and it seemed to only happen if i was driving the car for a while (20 to 30 mintues). and it did not do it at all at WOT. so i drive the car home and shut it off then immadiately tried starting it and it wouldnt start, i couldnt hear the fuel pump kick on. i let the car sit for about 15 minutes and tried starting it again and the fuel pump kicked on and it started just fine. what could be wrong?? i run a aeromotive 340 with a Caspers hot wire kit that was installed about 2 months ago. id really appreciate any help from you guys!

Last edited by n2ols1cam; 03-31-2012 at 11:34 AM..
n2ols1cam is offline   Reply With Quote
Old 03-19-2012, 08:52 AM   #2
TECH Enthusiast
 
Trader Rating: 0
Join Date: Jul 2010
Posts: 534
Default

Fuel pump is going out. Need to replace it. I know it's not what you wanted to hear. Replace it before it leaves you stranded some where far from home.
Ollie8974 is online now   Reply With Quote
Old 03-19-2012, 10:24 AM   #3
Launching!
 
Trader Rating: 0
Join Date: Oct 2011
Location: Phenix, AZ
Posts: 277
Default

could it be a problem with the wiring? the pump is pretty much brand new. less than 1000 miles on it.
n2ols1cam is offline   Reply With Quote
Old 03-21-2012, 09:23 AM   #4
Launching!
 
Trader Rating: 0
Join Date: Oct 2011
Location: Phenix, AZ
Posts: 277
Default

anyone??
n2ols1cam is offline   Reply With Quote
Old 03-21-2012, 10:40 AM   #5
On The Tree
 
Trader Rating: 0
Join Date: Jun 2009
Location: Manitowoc wi.
Posts: 175
Default

What kinda car is this? Is the pump in the tank or externally mounted? If indeed the pump is shutting off you need to monitor the voltage to the pump to determine if it is indeed the pump or voltage supply causing your problem.
mantycarguy is offline   Reply With Quote
Old 03-31-2012, 11:37 AM   #6
Launching!
 
Trader Rating: 0
Join Date: Oct 2011
Location: Phenix, AZ
Posts: 277
Default

Quote:
Originally Posted by mantycarguy View Post
What kinda car is this? Is the pump in the tank or externally mounted? If indeed the pump is shutting off you need to monitor the voltage to the pump to determine if it is indeed the pump or voltage supply causing your problem.
it is a 01 trans am and its a intank aeromotive 340 with a caspers hot wire kit. i really hope its just a ground issue because the pump and the hot wire kit are brand new.

would the fuel pump cutout randomly if it was a ground issue with the hot wire kit?
n2ols1cam is offline   Reply With Quote
Old 03-31-2012, 11:37 AM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Racetronix installed. low psi and very lean! HELP! Fst_Byrd Fueling & Injection 7 07-23-2014 10:56 AM
Lt1 Fuel system not working. Nate95LT1 Fueling & Injection 0 08-07-2013 09:28 PM
fuel pump problems Steve's LS1 Fueling & Injection 1 12-06-2012 06:43 PM
01 trans am cranks but wont turn over mezzoni General Maintenance & Repairs 11 08-11-2012 08:24 AM
hesitating while accelerating 94T/A5.7LT1 General Maintenance & Repairs 12 02-07-2008 03:08 PM


Tags
340, aeromotive, back, casper, cuts, cutting, fuel, fueling, hot, kicks, kits, lean, pump, running, wire


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Refbacks are Off



Join Ls1Tech

All times are GMT -5. The time now is 06:34 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details