what does this resistor do?
11-16-04, 11:02 PM
#5
Hi....
Join Date: Mar 2004
Location: bay area
Posts: 845
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Rotarded
If that was located under the master cylinder on the US spec car, it is the fuel pump resistor.
11-16-04, 11:12 PM
#6
Senior Member
Thread Starter
Join Date: Jul 2004
Location: Australia
Posts: 392
Likes: 0
Received 0 Likes
on
0 Posts
if this box is dead and is indeed the resistor box for the fuel injectors then when i suddenyl hit boost would this cause backfiring and lotsa smoke coming out the back.. its not boosting correctly, if at all.
11-16-04, 11:25 PM
#7
Rotary Enthusiast
iTrader: (1)
Join Date: Feb 2004
Location: UK
Posts: 899
Likes: 0
Received 0 Likes
on
0 Posts
here mate,,,,dig through the manual,,,its very easy to test that resistor to see if its broken with an electric meter,, (the resistor changes the voltage to the pump allowing the fuel pump to work at a different speed if im not mistaken).. i very much doubt its your problem,,, but like i said get an electric meter on the connectors.
Trending Topics
11-16-04, 11:37 PM
#8
"Challenged" since 1993
Join Date: Sep 2002
Location: Columbus, Oh
Posts: 540
Likes: 0
Received 0 Likes
on
0 Posts
That is the fuel pump resistor.
Measure the resistance with an Ohms meter. It should be .57 to .70 Ohms at 20 degress C or 68 degrees F.
http://www.iluvmyrx7.com/3rdgen/manu...ol_systems.pdf
(page F 109 in the Mazda service manual)
Measure the resistance with an Ohms meter. It should be .57 to .70 Ohms at 20 degress C or 68 degrees F.
http://www.iluvmyrx7.com/3rdgen/manu...ol_systems.pdf
(page F 109 in the Mazda service manual)
Last edited by Rotarded; 11-16-04 at 11:40 PM.
11-16-04, 11:41 PM
#9
"Challenged" since 1993
Join Date: Sep 2002
Location: Columbus, Oh
Posts: 540
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by jeremyb
I think its the resistor box for the fuel injectors... not the pump. But i could be wrong so flame me if i am. The only way for the fuel pump to not work is by pulling its fuse or cutting its wires.
11-16-04, 11:50 PM
#10
Senior Member
Join Date: Nov 2003
Location: Irvine, California
Posts: 599
Likes: 0
Received 0 Likes
on
0 Posts
Just a though here, If the fuel pump resistor did fail you would ether have no fuel pump operation or just the low voltage version. In ether case you might have a lean conduction or a really really lean conduction. In ether case its unlikely this would cause a smoking condition. Unless the unthinkable has accrued in that case it would run poor all the time.
11-17-04, 08:47 AM
#11
RX-7 Bad Ass
iTrader: (55)
I seriously doubt it's bad - they're pretty solid state, and there's really nothing to fail.
And, yes, that is the fuel pump resistor. There's a relay nearby that switches the voltage going to the fuel pump to be either straight to the pump or through the resistor. The resistor drops fuel pump voltage to 9v during idle and cruise.
Dale
And, yes, that is the fuel pump resistor. There's a relay nearby that switches the voltage going to the fuel pump to be either straight to the pump or through the resistor. The resistor drops fuel pump voltage to 9v during idle and cruise.
Dale
Thread
Thread Starter
Forum
Replies
Last Post
