NA6 stopped dead. Electrical issues.

StanTheMan · Postby **StanTheMan** » Fri Mar 02, 2007 12:14 pm

bigdog wrote:The Walbro Hi Volume replacement pumps are $275 from Mania - but they might also have a good s/h one. This could be the excuse for going turbo STM - Why waste a hi volume pump on standard efi after all!

good point Biggus D. I somehow doubt the wife will see it that way :lol:

but 1 step closer :twisted:

eventually All i will have to do is just bolt on the turbo intercooler & ECU & it will all be done. Everything else has been upgraded & strengthened LOL.

maybe i'll just chipp away at it litlle bit at the time. one day she'll just forget to say no.....I hope thats the day i have some cash & something is available.
:mrgreen:

StanTheMan · Postby **StanTheMan** » Fri Mar 02, 2007 12:17 pm

ampz...you didn't confuse me....i did that myself. I re-read your post from the other night. Its crystal clear in the post.

Changing a petrol pump i can handle. when it comes to a bug hunt in the electrical system is when I panic.

Fuzzlet · Postby **Fuzzlet** » Fri Mar 02, 2007 12:32 pm

StanTheMan wrote:when it comes to a bug hunt in the electrical system is when I panic.

In the 12 months of owning my MX ive had to chase more gremlins than I can remember......arm yourself with a wiring diagram and its not too hard

Boags · Postby **Boags** » Sun Mar 04, 2007 9:53 am

How did you go STM?

StanTheMan · Postby **StanTheMan** » Tue Jul 10, 2007 9:07 am

Well Boagsy. Its been running fine for the last 4mths. I did get a new pump, but haven't had the chance to install it. Just dreading to have to take out the roll bar really. But once you're at it , It would probably only take 20min. So you could call me somewhat lazy. If my Pump goes......I hope its near home.

Andrew · Postby **Andrew** » Tue Jul 10, 2007 10:05 am

fuel pump isnt all that bad along with the 20 minutes for taking the roll bart out, did it all not that long ago - link.

StanTheMan · Postby **StanTheMan** » Mon Nov 23, 2009 9:24 pm

Right so I never replced that fuel pump. I still have it under the house.....somewhere.

so I had a problem with the windscreen wiper motor. It stopped working.

so I was under the dash changing fuses & replaced the offending one. I have no idea wht fuse goes where but there is heaps of empty spots. but the wiper motor started working again.

But the car will not start now. :lol:

scenrio 1 is that the fuel pump has given up the ghost.

scenario 2 is that possebly another fuse has blown which drives the fuel pump?
there is 1 fuse under the dasg which is a bit more solid heavy duty type I've pulled it out & put it back. what does it drive?

however

I tried ampz tick with the F/P & GRD....ignition on.....no hissing

checked the spark plugs. Dry.

bigdog · Postby **bigdog** » Mon Nov 23, 2009 10:33 pm

http://mx5cartalk.com/forum/viewtopic.php?f=55&t=37499&p=487016&hilit=fuse#p487016

Engine fuse? Replace all of them one by one till it starts. 99% odds it is a fuse.

~edit:STM~

fuse box under dash NA6

That image supplied by Juffa is pretty useful. It helped me out massively. thanks for the link

Postby **Okibi** » Mon Nov 23, 2009 11:39 pm

We had a club member have their fuel relay die on Sunday, you might have the same problem. I'm pretty sure that big black relay top right is the relay for the fuel pump, you need to jump the power diagonally across 2 of the 4 points (sorry cant remember which pair it is).

Since you've already tried to trigger it from the diagnosis port without luck then if the fuel pump comes on then it'll be a dead relay.

StanTheMan · Postby **StanTheMan** » Tue Nov 24, 2009 6:53 am

bigdog wrote:http://mx5cartalk.com/forum/viewtopic.php?f=55&t=37499&p=487016&hilit=fuse#p487016

Engine fuse? Replace all of them one by one till it starts. 99% odds it is a fuse.

That's tops.
But unfortunately.....not the fuse.

I'll try Okibi's trick tonight.

ampz · Postby **ampz** » Tue Nov 24, 2009 8:15 am

My money is on a fuse feeding the adaptronic.
Are you able to talk to it via the laptop?
If so, see if cranking the engine gives you an rpm reading on the adaptronic live guages.

Give us a call I have some time tonight.

StanTheMan · Postby **StanTheMan** » Tue Nov 24, 2009 9:15 am

havent tried that.

I'll check with the missus for tonight. & make sure we have some food in the house.

ampz · Postby **ampz** » Tue Nov 24, 2009 9:33 am

StanTheMan wrote:we have some food in the house.

Are you trying to fatten me up?

StanTheMan · Postby **StanTheMan** » Tue Nov 24, 2009 11:10 pm

right Patchy is back in action.

A huge thank you to ampz......who is just a wizzard.

Long story cut short.

it wasn't the fuel pump. It wasn't any relay, it wasn't the alarm fuel cut out, it wasn't a fuse & it wasn't the adaptronic.
It was a dodgy loom which plugs into the fuel pump.

It now has a temporary fix. It will have to be replaced but basically the 12 volt wire had to be pushed back in.