fuelpump wont kick into action, filter sock lookz guey
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- Eunos Roadster
- Fast Driver
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- Vehicle: NA6
- Location: Boronia VIC 3155
fuelpump wont kick into action, filter sock lookz guey
Hi all,
I have an issue with my fuel pump. I cant get it to work. I checked fuses in the engine bay and under the dash.
My markings are alll in Japanese and I dont have a manual. Which one is for the fuel pump, please?
Why are there 4 wires going to the pump?
Does anyone have a diagramm, manual or book on repairs that I can borrow or download from somewhere, please?
I have an issue with my fuel pump. I cant get it to work. I checked fuses in the engine bay and under the dash.
My markings are alll in Japanese and I dont have a manual. Which one is for the fuel pump, please?
Why are there 4 wires going to the pump?
Does anyone have a diagramm, manual or book on repairs that I can borrow or download from somewhere, please?
Best regards
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
-
- Speed Racer
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Re: fuelpump wont kick into action, filter sock lookz guey
Wiring diagrams:
http://neomiata.com/garage/index.php
Manuals:
http://www.mellens.net/mazda/
There are 4 wires going into the tank because 2 go to the pump & 2 go to the fuel level sender unit.
Check that this isn't the problem:
viewtopic.php?f=55&t=46425
Bear this in mind re the filter sock:
viewtopic.php?f=29&t=45597&p=575578#p575578
http://neomiata.com/garage/index.php
Manuals:
http://www.mellens.net/mazda/
There are 4 wires going into the tank because 2 go to the pump & 2 go to the fuel level sender unit.
Check that this isn't the problem:
viewtopic.php?f=55&t=46425
Bear this in mind re the filter sock:
viewtopic.php?f=29&t=45597&p=575578#p575578
- Eunos Roadster
- Fast Driver
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- Joined: Mon Oct 22, 2012 1:14 pm
- Vehicle: NA6
- Location: Boronia VIC 3155
Re: fuelpump wont kick into action, filter sock lookz guey
Hi there,
Thats awesome. Thank you very much.
Lets see if we can teack this sucker down.....
Thats awesome. Thank you very much.
Lets see if we can teack this sucker down.....
Best regards
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
- Eunos Roadster
- Fast Driver
- Posts: 375
- Joined: Mon Oct 22, 2012 1:14 pm
- Vehicle: NA6
- Location: Boronia VIC 3155
Re: fuelpump wont kick into action, filter sock lookz guey
Hi all,
Ok-found fuel pump rooted and replaced with a repco one. Swapped fuel filter, as well (they had a 20% off sale)
Swapped out the NGKs but now there is no spark :-(
What are the usual suspects? Had a look at the Computer in the footwell as it was kinda moist in therewhen I got the car but looked dry and good?
Any help would be much aporeciated......
Ok-found fuel pump rooted and replaced with a repco one. Swapped fuel filter, as well (they had a 20% off sale)

Swapped out the NGKs but now there is no spark :-(
What are the usual suspects? Had a look at the Computer in the footwell as it was kinda moist in therewhen I got the car but looked dry and good?
Any help would be much aporeciated......
Best regards
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
- xhonda_boy
- Fast Driver
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- Location: Sydney
Re: fuelpump wont kick into action, filter sock lookz guey
have you checked the fuel pump relay?
Ignition coil pack might be fried, leads faulty?
thats only two things I can think off...
Ignition coil pack might be fried, leads faulty?
thats only two things I can think off...
- Eunos Roadster
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Re: fuelpump wont kick into action, filter sock lookz guey
Hi there,
Fuel pump is pumping so the relais should be ok, no?
How do you test the coils? Does someone in Melbourne have a spare set I can borrow?
I downloaded a manual frim the Kiwi forum but its password protected :-(
Fuel pump is pumping so the relais should be ok, no?
How do you test the coils? Does someone in Melbourne have a spare set I can borrow?
I downloaded a manual frim the Kiwi forum but its password protected :-(
Best regards
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
- Eunos Roadster
- Fast Driver
- Posts: 375
- Joined: Mon Oct 22, 2012 1:14 pm
- Vehicle: NA6
- Location: Boronia VIC 3155
Re: fuelpump wont kick into action, filter sock lookz guey
Hi all,
Ok, just found this and probably will have to work through the list.....
http://rs55p3.rapidshare.com/cgi-bin/rs ... 0123456789
Ok, just found this and probably will have to work through the list.....
http://rs55p3.rapidshare.com/cgi-bin/rs ... 0123456789
Best regards
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
-
- Speed Racer
- Posts: 11990
- Joined: Mon Aug 08, 2005 11:35 pm
- Vehicle: Clubman
- Location: Melbourne
Re: fuelpump wont kick into action, filter sock lookz guey
While it's possibly a coincidence that this has occurred immediately following the work you've undertaken, there's also a good chance that you've disturbed something or even inadvertently disconnected something, so if you haven't already, then retrace your steps.
See ampz's post for possibles:
http://www.mx5cartalk.com/forum/viewtop ... 87&start=0
See Uncle Arthur's post for 15A fuse under dash:
http://www.mx5cartalk.com/forum/viewtop ... 64&start=0
See my post for ECU capacitors:
http://www.mx5cartalk.com/forum/viewtop ... 31&start=0
Other possibilities:
http://www.mx5cartalk.com/forum/viewtop ... 35&start=0
viewtopic.php?f=55&t=53926
See ampz's post for possibles:
http://www.mx5cartalk.com/forum/viewtop ... 87&start=0
See Uncle Arthur's post for 15A fuse under dash:
http://www.mx5cartalk.com/forum/viewtop ... 64&start=0
See my post for ECU capacitors:
http://www.mx5cartalk.com/forum/viewtop ... 31&start=0
Other possibilities:
http://www.mx5cartalk.com/forum/viewtop ... 35&start=0
viewtopic.php?f=55&t=53926
- Eunos Roadster
- Fast Driver
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Re: fuelpump wont kick into action, filter sock lookz guey
Hi mate,
Thats awesone, thank you very nuch.
Will get vack to ut after work.....
Thats awesone, thank you very nuch.
Will get vack to ut after work.....
Best regards
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
- Eunos Roadster
- Fast Driver
- Posts: 375
- Joined: Mon Oct 22, 2012 1:14 pm
- Vehicle: NA6
- Location: Boronia VIC 3155
Re: fuelpump wont kick into action, filter sock lookz guey
Hi all,
Eureka! Shes a runnin!
Borrowed an OBD II analyzer from a friend on the way from work and hooked it up. Since the battery was flat for a long time I thought it wouldnt find any faults anywho.
Tried to read the fault memory several times but didnt work.
Me think ƒü¢k this, lets crank it and see what happens: e voila, starts first go!!!!
Rough sounding and reluctant to rev up, but running.
Checked heater and A/C hot and ice cold, beutiful. Idle went realy low but didnt stall. Very noisy tappets and slight leak from the water thermostat and maybe a slight leak from the header or just the cone filter making a noise couldn't quite see as was dark already.
Hooked the scanner back up and came up with TDC sensor fault.
Lets see what happens tomorrow, but so far I am happy.
Big thank you to everyone who offered help and assistance.

Eureka! Shes a runnin!
Borrowed an OBD II analyzer from a friend on the way from work and hooked it up. Since the battery was flat for a long time I thought it wouldnt find any faults anywho.
Tried to read the fault memory several times but didnt work.
Me think ƒü¢k this, lets crank it and see what happens: e voila, starts first go!!!!
Rough sounding and reluctant to rev up, but running.
Checked heater and A/C hot and ice cold, beutiful. Idle went realy low but didnt stall. Very noisy tappets and slight leak from the water thermostat and maybe a slight leak from the header or just the cone filter making a noise couldn't quite see as was dark already.
Hooked the scanner back up and came up with TDC sensor fault.
Lets see what happens tomorrow, but so far I am happy.
Big thank you to everyone who offered help and assistance.



Best regards
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
-
- Speed Racer
- Posts: 11990
- Joined: Mon Aug 08, 2005 11:35 pm
- Vehicle: Clubman
- Location: Melbourne
Re: fuelpump wont kick into action, filter sock lookz guey
Great to hear it's running.
Just for info, in Australia 1989 NA6 to 2002 NB8B MX5s are OBDI, while 2002 NB8C onwards are OBDII. My understanding the is the P3 revision (see VIN) was the change over point.
Just for info, in Australia 1989 NA6 to 2002 NB8B MX5s are OBDI, while 2002 NB8C onwards are OBDII. My understanding the is the P3 revision (see VIN) was the change over point.
-
- Speed Racer
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- Joined: Mon Aug 08, 2005 11:35 pm
- Vehicle: Clubman
- Location: Melbourne
Re: fuelpump wont kick into action, filter sock lookz guey
Btw, OBDII was introduced in August 1995 production of the JDM Eunos Roadster.
- TurboDoseBro
- Fast Driver
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Re: fuelpump wont kick into action, filter sock lookz guey
Ya feels me?
Fastest Laps:
Winton 1:44:92
Wakefield Park 1:15:06
RIP
Fastest Laps:
Winton 1:44:92
Wakefield Park 1:15:06
RIP
- Eunos Roadster
- Fast Driver
- Posts: 375
- Joined: Mon Oct 22, 2012 1:14 pm
- Vehicle: NA6
- Location: Boronia VIC 3155
Re: fuelpump wont kick into action, filter sock lookz guey
It is till running, regardless of what OBD it was....

Best regards
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
Marty
VIC MX5 Club #1912 est. 2012
1991 NA Eunos Roadster Low Budget "Racer"
1989 NA Eunos Roadster BRG Family Resto Project
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