Notices
SC - 1st Gen (1992-2000)

fuel symptoms

Thread Tools
 
Search this Thread
 
Old Sep 13, 2012 | 06:47 PM
  #1  
INCLINEDI's Avatar
INCLINEDI
Thread Starter
Rookie
 
Joined: Sep 2011
Posts: 66
Likes: 0
From: CA
Default fuel symptoms

so i have a 5 speed sc300 2jz-ge and i'm showing some weird symptoms..
its happened two times and once left me stranded. first time i was just driving normal and all of a sudden the car bogs, as it was bogging i put the clutch in to try and rev it up and keep it from stalling, it stalled though, i was still rolling in the street after stalling so i decided to try and pop start it and well of course the motor was turning but didnt want to combust. so it seems like im having a fuel cut, i turned off the car and tried starting it for a good 10 min, the motor was turning but like i said not firing. i get towed home and the NEXT day it fires right up! my only problem is i dont know if its a short or a bad fuel pump, anyone else have similar issues or any 2 cents they can kick me? thanks!
Reply
Old Sep 13, 2012 | 07:34 PM
  #2  
2JTsc300's Avatar
2JTsc300
Pole Position
 
Joined: Oct 2011
Posts: 275
Likes: 2
From: Texas
Default

you try the fuel pump mod?
Reply
Old Sep 14, 2012 | 01:35 PM
  #3  
INCLINEDI's Avatar
INCLINEDI
Thread Starter
Rookie
 
Joined: Sep 2011
Posts: 66
Likes: 0
From: CA
Default

Originally Posted by 2JTsc300
you try the fuel pump mod?
no i have not, im not familiar with that. should i just search "fuel pump mod"?
Reply
Old Sep 17, 2012 | 09:42 PM
  #4  
sc300lexii's Avatar
sc300lexii
Driver School Candidate
 
Joined: Mar 2012
Posts: 49
Likes: 0
From: FL
Default

Did your check engine light turn on ?
Reply
Old Sep 17, 2012 | 10:27 PM
  #5  
durps's Avatar
durps
Lead Lap
iTrader: (8)
 
Joined: Nov 2011
Posts: 622
Likes: 0
From: Jersey
Default

Google sc300 fuel pump ecu 12v mod.
Reply
Old Sep 20, 2012 | 02:40 PM
  #6  
INCLINEDI's Avatar
INCLINEDI
Thread Starter
Rookie
 
Joined: Sep 2011
Posts: 66
Likes: 0
From: CA
Default

i located the fuel pump ecu under (rear driver quarter panel right?) i did a little research and found outabout the fuel pump mod. turns out the previous owner had already done it there were two wires cut and spliced together. my CEL did not turn on once it stalled, UPDATE- MY CAR IS STILL JUST CRANKING AND NOT FIRING. I BOUGHT A NEW FUEL PUMP PLUGED IT IN AND TURNED THE IGNITION N AND I CANT HEAR OR FEEL IT WORKING. SOUNDS LIKE A SHORT? OR SHOULD I REPLACE THE FP ECU?
Reply
Old Sep 20, 2012 | 02:41 PM
  #7  
INCLINEDI's Avatar
INCLINEDI
Thread Starter
Rookie
 
Joined: Sep 2011
Posts: 66
Likes: 0
From: CA
Default

Originally Posted by sc300lexii
did your check engine light turn on ?
check engine light did not turn on at all.

Originally Posted by durps
google sc300 fuel pump ecu 12v mod.
ya turns out its already done to the ecu but the copper wiresw are just twisted on each other, think that can cause a bad connection?
Reply
Old Sep 28, 2012 | 01:04 PM
  #8  
carsmypnis's Avatar
carsmypnis
Driver
iTrader: (1)
 
Joined: Dec 2006
Posts: 105
Likes: 0
From: florida
Default

did u check for voltage at the pump?
Reply
Old Sep 28, 2012 | 03:22 PM
  #9  
1JZPWRD's Avatar
1JZPWRD
1JZ Single SC400
iTrader: (59)
 
Joined: Jan 2009
Posts: 8,518
Likes: 17
From: Alabama, Roll Tide!
Default

Run a separate relay to the fuel pump and see if the car will start that way. This will eliminate all the factory wiring and so on. If you need the diagram, PM me for info. This will eliminate the headache of figuring out if the fuel pump relay (Oem) and the pump itself is gone bad. Basically supplying the pump with a constant 12 volts to the blue wire on the pump.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dicer
LS - 1st and 2nd Gen (1990-2000)
4
Mar 23, 2019 10:20 PM
SCgonecray
SC - 1st Gen (1992-2000)
3
Aug 20, 2012 09:20 AM
cardwielde
SC - 1st Gen (1992-2000)
11
Jan 22, 2011 06:21 PM
florida sc
SC - 1st Gen (1992-2000)
5
Sep 29, 2009 06:39 PM
na4now
SC - 1st Gen (1992-2000)
6
Oct 4, 2007 11:42 PM




All times are GMT -7. The time now is 01:18 AM.