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 Post subject: Fuelling issue ?
PostPosted: Thu Oct 27, 2011 10:31 am 
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Joined: Wed Jul 23, 2008 4:32 pm
Posts: 437
Location: LIMERICK
Car: 1996 Mini Sidewalk Spi

The other day I let the petrol tank run fairly low ( enough to make the car chug a little ) I went to the nearest petrol station and filled up , but the car was still dying and cutting out. This happened intermittently over the next week or so. Its gotten slightly better with each day. The only other thing I noticed was that the revs are higher at idle than normal ( like the choke was on constantly ) and the car often picks up a little when I release the accelerator.

i am assuming I have dirt from the bottom of the tank partly blocking the fuel system somewhere ( pump, filter or injector ) Does this sound right or is it a problem with electrics/ECU ....?

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 Post subject: Re: Fuelling issue ?
PostPosted: Thu Oct 27, 2011 10:42 am 
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Joined: Thu Sep 07, 2006 11:05 pm
Posts: 491
What Minis have you?: Mk1 Austin Mini,Mk3 Layland Mini,72Van,81 Clubman Estate, 87 Race carand a 2000 Rover Cooper.
Modifications: Mk1: 998 with flat top slipper pistons, 286 cam, 12G940 head 11:1 compression twin inch and a half SU's 5 speed gearbox. Mk3 998 automatic no mods, 72Van is a pile of rust, , Racer is being built but has the works and the 2000 rover cooper needs an engine again :(
Location: Dublin
Prity Problem with SPI Goose,

you have in fact two problems one is as you suspect a dirty or blocking injector,

and the second is your idle steeper motor has gone out side limits. It does this to try keep the engine ruining as it runs out of petrol or when it misfires from the dirty injector. Its a simple fix you just need to bring it to someone who can clean the injector and reset the stepper motor.


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 Post subject: Re: Fuelling issue ?
PostPosted: Thu Oct 27, 2011 2:34 pm 
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NON Member

Joined: Wed Jun 17, 2009 4:43 pm
Posts: 316
Whats your location?: Co. Limerick
Region: Southern
What Minis have you?: 1976 saloon , 1275cc, White with black roof. Converted to Discs on the cheap so stuck with 12"s for now.
You didn't happen to fill up at the Topaz on the Tipperary road (The OLD Pat Keogh's) Goose ?????
Apparently one of the underground tanks let some water in during last Sunday's heavy rain.


Also, if you need any SPi bits give me a shout....I converted one to carb and have most of the SPi related bits here somewhere.


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 Post subject: Re: Fuelling issue ?
PostPosted: Fri Oct 28, 2011 2:09 am 
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Joined: Wed Jul 23, 2008 4:32 pm
Posts: 437
Location: LIMERICK
mgb1978 wrote:
You didn't happen to fill up at the Topaz on the Tipperary road (The OLD Pat Keogh's) Goose ?????
Apparently one of the underground tanks let some water in during last Sunday's heavy rain.


Also, if you need any SPi bits give me a shout....I converted one to carb and have most of the SPi related bits here somewhere.


@ MGB

No....I filled up in Topaz in Thomondgate....usually go to EMO on Clare street though. Cheers.....will drop you a pm if I need anything.

@Merlin

If I had a partial blockage in the injector , could it cause the stepper motor to kick in anyway ? Since it doesnt always rev higher and only does it after I lose power ( lack of fuel ) I assume the stepper motor is working fine and doing its job ?? Correct me if I am wrong :)

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And I said, Officer, I didn't want to be drunk in public...I wanna be drunk in the bar. Now last time I checked it was still legal to be drunk in the bar. They threw me into public...arrest them!

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 Post subject: Re: Fuelling issue ?
PostPosted: Fri Oct 28, 2011 11:26 am 
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NON Member
User avatar

Joined: Thu Sep 07, 2006 11:05 pm
Posts: 491
What Minis have you?: Mk1 Austin Mini,Mk3 Layland Mini,72Van,81 Clubman Estate, 87 Race carand a 2000 Rover Cooper.
Modifications: Mk1: 998 with flat top slipper pistons, 286 cam, 12G940 head 11:1 compression twin inch and a half SU's 5 speed gearbox. Mk3 998 automatic no mods, 72Van is a pile of rust, , Racer is being built but has the works and the 2000 rover cooper needs an engine again :(
Location: Dublin
Your Spot on Goose,
The stepper motor is trying to keep the motor alive when the fuel stops flowing properly through the injector, it is most likely reading an out side limits Fault in the ECU though which will need to be cleared.

Your would be as well off getting the injector flushed and the same for the fuel system, not to big a job and should sort all your problems.
rgds,
Paul.

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