*Low Fuel Warning Light* - Please Help
07-10-06, 11:23 PM
#1
There's Nothin Like Boost
Thread Starter
Join Date: Oct 2004
Location: Toronto, Ontario
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
*Low Fuel Warning Light* - Please Help
Hi there, I'm thinking this might be a new one for you guys.
Today I filled up my car and after starting it the fuel light is on and won't come off. Any ideas why this might be happening?
Today I filled up my car and after starting it the fuel light is on and won't come off. Any ideas why this might be happening?
07-10-06, 11:42 PM
#2
Former Moderator. RIP Icemark.
are there any other of the idiot lights on??? What does your voltmeter read???
The fuel gauge light sender /thermosister wiring may also be grounded
The fuel gauge light sender /thermosister wiring may also be grounded
Last edited by Icemark; 07-11-06 at 12:18 AM.
07-11-06, 12:04 AM
#4
HAILERS
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes
on
19 Posts
Sorry, but in my RX-7, in fact in all three of them, the item that makes the fuel low light come on is a thermistor on the pump and it does NOT rise and fall with the float (the fuel level float). The thermistor is fixed in place and does not move. See the free online fsm, the electrical section.
It works much like the thermistor in the top of the radiator. When it becomes uncovered with fuel, it trips the low light. IF you have fuel in the tank up to the gunnels, then the thermisitor is kaput or the wiring is kaput/shorted to gnd.
It works much like the thermistor in the top of the radiator. When it becomes uncovered with fuel, it trips the low light. IF you have fuel in the tank up to the gunnels, then the thermisitor is kaput or the wiring is kaput/shorted to gnd.
07-11-06, 11:13 AM
#6
There's Nothin Like Boost
Thread Starter
Join Date: Oct 2004
Location: Toronto, Ontario
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Icemark
are there any other of the idiot lights on??? What does your voltmeter read???
The fuel gauge light sender /thermosister wiring may also be grounded
The fuel gauge light sender /thermosister wiring may also be grounded
07-11-06, 11:16 AM
#7
There's Nothin Like Boost
Thread Starter
Join Date: Oct 2004
Location: Toronto, Ontario
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by HAILERS
Sorry, but in my RX-7, in fact in all three of them, the item that makes the fuel low light come on is a thermistor on the pump and it does NOT rise and fall with the float (the fuel level float). The thermistor is fixed in place and does not move. See the free online fsm, the electrical section.
It works much like the thermistor in the top of the radiator. When it becomes uncovered with fuel, it trips the low light. IF you have fuel in the tank up to the gunnels, then the thermisitor is kaput or the wiring is kaput/shorted to gnd.
It works much like the thermistor in the top of the radiator. When it becomes uncovered with fuel, it trips the low light. IF you have fuel in the tank up to the gunnels, then the thermisitor is kaput or the wiring is kaput/shorted to gnd.
Any other possibilites maybe? Anywho i'll have to get it checked out since i don't know much on my own unless its an easy fix.
Trending Topics
07-11-06, 12:19 PM
#9
There's Nothin Like Boost
Thread Starter
Join Date: Oct 2004
Location: Toronto, Ontario
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by 1987_Gxl
peice of tape will cover the light LOL its not so much a serious problem as you think
07-11-06, 01:24 PM
#10
HAILERS
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes
on
19 Posts
With the light on, pull the fuel pump plug apart. Light go out? Then buy another sender unit at Mazdatrix.com. or even better, the junque yard. Light stays on? Idiot light cluster problem/wiring problem.
07-11-06, 05:07 PM
#12
Driving RX7's since 1979
iTrader: (43)
Join Date: Aug 2001
Location: So Cal where the OC/LA/SB counties meet
Posts: 6,096
Likes: 0
Received 8 Likes
on
8 Posts
Buy a new sender unit from Mazdatrix
You can just buy a low fuel unit? When I last tried, I had to buy the entire fuel level assembly to get a new low fuel unit.
07-11-06, 08:01 PM
#13
HAILERS
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes
on
19 Posts
The float and the level sender price are here: http://www.mazdatrix.com/getprice.as...m=60-960B-FB01
Junque yard.....less.
Junque yard.....less.
07-12-06, 12:06 AM
#14
There's Nothin Like Boost
Thread Starter
Join Date: Oct 2004
Location: Toronto, Ontario
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by HAILERS
With the light on, pull the fuel pump plug apart. Light go out? Then buy another sender unit at Mazdatrix.com. or even better, the junque yard. Light stays on? Idiot light cluster problem/wiring problem.
And thank you for the information.
Thread
Thread Starter
Forum
Replies
Last Post
