need help, almost fixed please help me finish :)

Engines, Transmissions & Final Drive questions and answers

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manga_blue
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need help, almost fixed please help me finish :)

Postby manga_blue » Tue Oct 27, 2009 8:54 am

On your head be it. Personally, I'd try to find and fix the cause. It sounds like you on the way there already.

Otherwise I'd be worried about by-passing safety circuits.
’95 NA8

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Old Dude
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need help, almost fixed please help me finish :)

Postby Old Dude » Tue Oct 27, 2009 9:39 am

This might sound silly but is there a fuse to that wire that could have blown, I don't know where the fuse box is but it could be worth checking if you haven't already.
Failing that if you get a multimeter, and poke it into the wire where you have no power and follow it back and poke the other probe in along the way you should be able to find where it loses power and reconnect it .
Cheers
Dale 8)
"Everybody dies......, but not everybody lives" ;-)

MX 5 2001 Grace Green
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JBT
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need help, almost fixed please help me finish :)

Postby JBT » Tue Oct 27, 2009 9:45 am

rota1300t wrote:ok this might be what some one has described but i had no idea so i think i might be a genius

ok so went online found a wiring diagram, checked fuel pump diagram then went to the connectors with a multi meter

blue red has no power at all, from what ive read it is the main line to keep things running,

so bush mechanics 101 tells me add power to said wire and try, so i i conected a wire to the battery and held the other end neer a piece of the exposed blue red wire and when i tried to start it applied power to the blue red wire straight from the battery via my hand held live wire, hey presto runs like a dream, so final question is where does the blue red wire come from and what would of stoped it receiving power, can i just run a wire to the blue red from the ignition and by pass the problem safley?how to fix it many thanks and thanks for all the tips guys

I cannot follow this. Under what conditions does the power wire to the pump not have power :?:
Follow the circuit back to fault find. Make it clear what is/is not happening and under what conditions.

If you bridge the FP-GND in the diagnostics box and there is no power to the fuel pump with the ignition ON, you have a wiring and/or fuse and/or relay problem. If that checks OK but the engine quits with the bridge removed after start, then you have an AFM wiring problem.

I agree with manga_blue about safety circuits.
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need help, almost fixed please help me finish :)

Postby Sailor » Tue Oct 27, 2009 10:38 am

Try here
http://neomiata.com/garage/index.php

My reading sees the blue/red coming from the Fuel pump relay.

I'd be checking it first then track back to the other components upstream of that relay.

Good luck, sounds like you're nearly there!
Rob


05 NCLE, Cosworth SC,PF01,Ohlins,Selby,GWR exh
"We're only given a tiny spark of madness.We mustn't lose it"(Robin Williams)

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Old Dude
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need help, almost fixed please help me finish :)

Postby Old Dude » Tue Oct 27, 2009 10:39 am

x2 on the safety circuits
Cheers
Dale 8)
"Everybody dies......, but not everybody lives" ;-)

MX 5 2001 Grace Green
NB8B

rota1300t
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need help, almost fixed please help me finish :)

Postby rota1300t » Tue Oct 27, 2009 11:43 am

ok thanks alot guys, there is a buch of wires running back along the drivers side of the car guess i have to do the hard yards lol,

thanks again :D


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