27 replies to this topic

[minimissions]

Hi, well I have been looking on here and battling the troubles with my 1995 Mini. So here is a low down on what has been going on with the mini.

 

A few weeks back now I was setting off home, went to get some fuel filled her up, and set off on my way. about 6-7 miles in to the drive she cut out and died, I did all the road side things of checking connections and vac pipes etc.

 

From cold the car will run for 10-15 mins then cut out, once cooled off she will run for a few seconds then die again??

 

Baring in mind this thing has never let me down in 6 years of ownership I was shocked. Since then she has been code read, which bought the air temp sensor in the air box, this has been sorted as has the temp sender sensor in the inlet as I thought that could be an issue.

 

I have also changed out the main relay module and its like the car is killing the fuel supply.

 

For the last 6 months the car has read on the temp gauge just above the blue and never to the middle, something I have been keeping an eye on as once warm she always sat in the middle as per every other mini I have even owned has.

 

Me and a mate got some wire and the last time if cut out we bypassed the fuel pump and she ran again. Could this mean the pump in the tank is knackered?

 

Any ideas would be appreciated as I just want her used and not sat about in this cracking weather..

 

Thanks in advance.

[humph]

Still not sorted, as someone who has a similar problem I feel your pain. Symptoms of mine are different, but my temp guage started doing exactly the same about 12 months ago and has stayed that way, odd as when I connect my sykes pickavant to it the temp reading seems fine. Also my car always carries an air temp sensor error code, always has, so not sure if this is "normal". I won't go into the the symptoms of my struggles as they may confuse the answers you get, and you'll have seen them in the NW thread anyway, but I have wondered about fuel supply being the reason for mine too, still investigating.

 

I've just bought one of these

 

https://www.ebay.co....ffff06813|iid:1

 

There is a thread on here for building your own but the components are only available in bulk as far as I can tell.  I'm hoping that it gives me more info than I get out of the SP reader, especially regarding the lambda sensor as my, intermittantly at least, seems to stop cycling.

 

Hope you get it sorted as I fully understand how frustrating it is not being able to use/trust your Mini when the weather is so nice.

[Lord Oversill]

Is your tank ok? I changed the fuel pump on my Spi and was pretty surprised at the amount of **** that was in moving around in the bottom? Bit basic I know.

[minimissions]

Still not sorted, as someone who has a similar problem I feel your pain. Symptoms of mine are different, but my temp guage started doing exactly the same about 12 months ago and has stayed that way, odd as when I connect my sykes pickavant to it the temp reading seems fine. Also my car always carries an air temp sensor error code, always has, so not sure if this is "normal". I won't go into the the symptoms of my struggles as they may confuse the answers you get, and you'll have seen them in the NW thread anyway, but I have wondered about fuel supply being the reason for mine too, still investigating.

 

I've just bought one of these

 

https://www.ebay.co....ffff06813|iid:1

 

There is a thread on here for building your own but the components are only available in bulk as far as I can tell.  I'm hoping that it gives me more info than I get out of the SP reader, especially regarding the lambda sensor as my, intermittantly at least, seems to stop cycling.

 

Hope you get it sorted as I fully understand how frustrating it is not being able to use/trust your Mini when the weather is so nice.

Thanks for that, mine is like yours under the reader everything is reading well no errors but its still being a right pain in the A** it will sit on the driveway and run well for 15 mins then splutter to a stop.. Thanks for your tips glad I am not the only one out there with these issues.

[minimissions]

Is your tank ok? I changed the fuel pump on my Spi and was pretty surprised at the amount of **** that was in moving around in the bottom? Bit basic I know.

This is my next point of call, to change out the pump, I have the use of another tank which I might bung in and see as its a different tank and pump and see how I get on..

[viz139]

I have heard of a Fuel cut inertia switch going faulty intermittently causing random cutting out and than restarting after a while without  having to reset the switch. If it cuts out again try shorting out the switch.

[genpop]

Hi,

with mems-gauge, mems-rosco or mems-diag

you can not directly read if the fuel pump works well or if the fuel filter is stuck,.But you can read short term fuel trim with mems-rosco and you can read  the signal from crancshaft sensor.If they change directly before stopping this could be a sign for the fault.On the other hand you write in your first thread that you bypass fuel pump, what exactly are you doing? Are you bypassing the inertia switch or do you bypass the main relais block, then it could be the crancshaft sensor. Download mems-rosco from github.com/leopoldG and do a log file.This you could publish here.Some specialists may be able to read them!

[minimissions]

I have heard of a Fuel cut inertia switch going faulty intermittently causing random cutting out and than restarting after a while without  having to reset the switch. If it cuts out again try shorting out the switch.

Thank you I will do.

 

When we bypassed it the last time we literally used a wire from the pump to battery and the car fired back up again, there doesnt appear to be anything random about the cut out, once she is up to temperature 10-15 mins, she will then cut out and not start, leave her 5-10 mins she may start back up but only for a short while again.

[genpop]

 

Is your tank ok? I changed the fuel pump on my Spi and was pretty surprised at the amount of **** that was in moving around in the bottom? Bit basic I know.

This is my next point of call, to change out the pump, I have the use of another tank which I might bung in and see as its a different tank and pump and see how I get on..

 

Do that!

[MatthewsDad]

Just a simple one, and to add to the crud in the tank suggestion, fuel filter?

[Bat]

Hi,

Crank sensor breaking down when hot? 

Also if your temp guage guage isn't rising properly get the correct thermostat fitted, don't fit anything other than the correct one. If the engine isnt warming up properly it causes a lot of problems..

Cheers 

[minimissions]

Just a simple one, and to add to the crud in the tank suggestion, fuel filter?

This is something I will replace as well while doing the tank etc

[minimissions]

Hi,

Crank sensor breaking down when hot? 

Also if your temp guage guage isn't rising properly get the correct thermostat fitted, don't fit anything other than the correct one. If the engine isnt warming up properly it causes a lot of problems..

Cheers 

I have replaced the crank sensor as I thought it was that first off, and its made no difference.

The thermostat is definatly the correct one it was changed within the year and the temp was reading fine, its the last month or so before break down that its not read right..

 

thanks

[Bat]

Hi,

I'm a little confused with the part in your first post where you said you bypassed the fuel pump?

If you put a feed directly to the pump and it ran fine then there's nothing wrong with the fuel side it has to be electrical.

Cheers 

[FlyingScot]

Does the car have an immobiliser ? The fuel pump relay is inside the MFU (relay box) and is grounded by MEMS to operate.
The immobiliser could be preventing operation.
However my money would be on the wiring which in most cars becomes brittle and could also be implicated in your temperature issue (if not the sensor or blocked inlet water channel).

FS