Help Please
#1
Posted 14 September 2009 - 08:21 PM
#2
Posted 14 September 2009 - 08:30 PM
The reason I say this is I had a similar problem but that was due to the fuel pump being to big, the result was a high fuel pressure and 3 foot long flames from the exhaust.
Either than or its the MAP sensor capilary lines.
The radiator fan is a completely different issue.
#3
Posted 14 September 2009 - 08:42 PM
#4
Posted 14 September 2009 - 08:45 PM
HAve you fitted the fuel lines back onto the inlet manifold the correct way round?
The reason I say this is I had a similar problem but that was due to the fuel pump being to big, the result was a high fuel pressure and 3 foot long flames from the exhaust.
Either than or its the MAP sensor capilary lines.
The radiator fan is a completely different issue.
Wow, not good. Don't drive the car like this - you will destroy your catalytic converter..
Hmmm.. fuel lines the wrong way round. Can't quite think what that would do, but its got to be down to hideous amounts of fuel getting into the engine, so maybe if you plumb the supply from the pump into the return from the injector, it squirts straight out or something ?. Worth a check. I think there is a picture in the Haynes manual showing the setup?
Either that or the injector is somehow staying on permanently and just spraying fuel all the time. That would be easy to see, just take the air filter housing off and watch the injector spray. You should be able to see it 'squirting on and off' as opposed to spraying all the time.
Just can't think of anything else that you could have done whilst doing the job that would result in such bad overfuelling. I mean, even if you had wrecked the lambda sensor, which could happen transferring it over, surely the ECU wouldn't provide SO much fuel due to a bad lamda sensor signal? You could try disconnecting the lamda sensor to see if that helps I suppose.
Good luck!
#5
Posted 14 September 2009 - 08:52 PM
HAve you fitted the fuel lines back onto the inlet manifold the correct way round?
The reason I say this is I had a similar problem but that was due to the fuel pump being to big, the result was a high fuel pressure and 3 foot long flames from the exhaust.
Either than or its the MAP sensor capilary lines.
The radiator fan is a completely different issue.
Wow, not good. Don't drive the car like this - you will destroy your catalytic converter..
Hmmm.. fuel lines the wrong way round. Can't quite think what that would do, but its got to be down to hideous amounts of fuel getting into the engine, so maybe if you plumb the supply from the pump into the return from the injector, it squirts straight out or something ?. Worth a check. I think there is a picture in the Haynes manual showing the setup?
Either that or the injector is somehow staying on permanently and just spraying fuel all the time. That would be easy to see, just take the air filter housing off and watch the injector spray. You should be able to see it 'squirting on and off' as opposed to spraying all the time.
Just can't think of anything else that you could have done whilst doing the job that would result in such bad overfuelling. I mean, even if you had wrecked the lambda sensor, which could happen transferring it over, surely the ECU wouldn't provide SO much fuel due to a bad lamda sensor signal? You could try disconnecting the lamda sensor to see if that helps I suppose.
Good luck!
Any chance you've ended up melting some wiring somewhere, eg wires have got routed too close to the LCB, got melted and shorted?
Just thinking that the way the injector 'fires' is by an interrupted earth - ie its fed with 12V and to switch it on and off the ECU connects / disconnects its earth. So if you ended up with the injector earth wire (which goes to the ECU) shorted out to earth (eg the exhaust) then the injector would be on all the time.
Also, I'm sure the AUX fan could suffer the same problem - normally it comes on when the thermostatic switch closes, but I'm sure it is also switched on its earth side (normal practice in car electrics). So again, a melted/earthed wire could cause it.
#6
Posted 14 September 2009 - 09:10 PM
#7
Posted 14 September 2009 - 11:32 PM
#8
Posted 15 September 2009 - 09:40 AM
got fan working wires wrong way around. as for fueling its injecting ok. the car cuts out at idle when driving. eg traffic lights it wont idle and cuts out. its driving me mad...
Did you check the vacuum lines to the ECU map sensor? I agree with earlier comments that it could be that. If you have checked the spray pattern and it looks normal, then it has to be overfuelling caused by something else. I'm just suprised at the extent of the overfuelling.
take the vac pipe off the ECU and stick your finger on the end with the engine running. Should be sooking good style. If not, start looking for leaks (most likely broken at the back of the inlet manifold, maybe got damaged when you were taking the manifold on / off).
Cheers
Craig
#9
Posted 15 September 2009 - 09:46 AM
#10
Posted 15 September 2009 - 09:51 PM
#11
Posted 16 September 2009 - 08:06 PM
#12
Posted 16 September 2009 - 08:29 PM
problem sortded craig credit to ya lad, the small black vac line that goes from the inlet to map sensor was broke off inlet.. thanks to all the people to replied to my post be lost without ya thanks again
Ah, excellent. Glad you found it! Yes, thats happened to me before too - though one time it was an 'intermittent' leak so it would still run (to a varying degree!) and mostly just ran really really rich. Took me ages to find it!
Must be the cause of about 60% or more of injection minis going wrong!!
Cheers
Craig
#13
Posted 16 September 2009 - 10:33 PM
This is one reason I dont reply to many topics these days
I hinted on the problem 2 days ago, and you have only just found it. These capilary lines are the FIRST thing anyone should check, but it would apear I have not stressed this enough
Most of the time I can fix it, but I have to be there. I cannot fix it from a distance, when the information given is not acurate I dont have much spare time these days, and writing lengthy posts to try and help some one diagnose faults takes quite a bit of time and thought on my part. I just dont have the time any more.
Sorry, not having a go at you personaly, its in general
#14
Posted 17 September 2009 - 07:48 AM
#15
Posted 17 September 2009 - 11:50 AM
Minispares does sell those pipes though.
http://www.minispare...mp;title=VACUUM PIPE TO ECU FROM F...
http://www.minispare...mp;title=VACUUM PIPE- INLET MANIFO...
http://www.minispare...=...20TO SPI ...
The yellow one, I have not seen available
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