Problems Persist
Discussion
I have now changed plugs, leads, dizzie cap, rotor arm, 100 amp fuse, AFM and lambda sensors, the problem of over fuelling still persists. In discussion with the excellent people at Elmwood yesterday, they feel it could be a worn camshaft but this can't be checked until after Classic Le Mans. Another option is the ECU!
The heads were taken off a couple of weeks ago and I was told that the bores etc., looked pretty good, but nothing about the cams! Engine has done 64,000 miles.
Any ideas?
Does anyone in Surrey have a spare ECU that I could try? Tall order I know but if you don't ask...
Many thanks
The heads were taken off a couple of weeks ago and I was told that the bores etc., looked pretty good, but nothing about the cams! Engine has done 64,000 miles.
Any ideas?
Does anyone in Surrey have a spare ECU that I could try? Tall order I know but if you don't ask...
Many thanks
have you had the car on Rovergauge or Ecumate, as this will show what the ECU is doing, it will also highlight how hard it is having to compensate for a lean/Rich engine with the lambda trim on both short and long term trim. There are many reasons for it over fuelling, mine was faulty wiring on the Lambda heater circuit.
Thanks for all of this, very useful.
On talking to a friend of mine he said that he had the exact same problem and it turned out to be the fuel-pickup filter in the tank becoming blocked with rubbish in the tank. By stopping the car for a while this allowed the sediment to settle and then would be ok for a short period until it blocked again causing fuelling issues.
Thoughts?
On talking to a friend of mine he said that he had the exact same problem and it turned out to be the fuel-pickup filter in the tank becoming blocked with rubbish in the tank. By stopping the car for a while this allowed the sediment to settle and then would be ok for a short period until it blocked again causing fuelling issues.
Thoughts?
jamienshelly said:
Are you just guessing as to what the fault could be or are you changing these parts as a result of diagnosis. this could be very expensive if its just a case of a poor connection at the Lambdas or the AFM, or even the fuel pressure regulator pipe fallen off!.
It was a process of elimination really and as I intend to keep her long-term, then replacing the parts would have been part of the strategy anyway! Well that's my story and I'm sticking to it!As an experiment, after a discussion with one of my clients, I put the original coil back on and must admit the tickover is now much smoother
let her warm up until the fans kicked in and no problems now need to road test but a bit wet at the moment 
Fingers crossed (:-)Webby66 said:
need to road test but a bit wet at the moment Fingers crossed (:-)
You were right not to road test early this morning. I came down the A1 at about 6 am and the amount of water standing or running on the road was actually quite alarming even in a 4-wheel drive Audi saloon Fingers crossed (:-)
And she ran ...
I was lucky enough to passenger in Webbys Chim (Stella) to the Le Mans Classic last weekend and she bahaved impeccably, and was a hoot to drive, she even lapped up the 2 parade laps which were very wet and survived a mostly monsoon ridden drive home
I now want one .....
I was lucky enough to passenger in Webbys Chim (Stella) to the Le Mans Classic last weekend and she bahaved impeccably, and was a hoot to drive, she even lapped up the 2 parade laps which were very wet and survived a mostly monsoon ridden drive home
I now want one .....
QBee said:
phazed said:
Webby66 said:
When i first picked the car up i did run out of fuel!! Gauge was still showing some in her!!
ditto with my 5.5, runs out just after one quarter full.ukdj said:
Me too, but have now fixed this issue - undo the 5 or 6 screws to take the sender out of tank, flip float around 180° so it doesn't get stuck on the back of the tank as it gets to around ¼ full. Then move sender through full range and check gauge reading, adjust the stoppers on the sender mechanism as neccessary so the gauge reading tallies with sender movement - voila accurate fuel gauge!
That will be on the "to do" list 
Should of said check which way round your float is - i.e. like an iceberg where is the "body" of the float - on mine it was facing the rear of the tank and subsequently fouling the tank wall at a certain point when getting low, and therefore giving a false reading yours may not and therefore not require flipping the float but worth checking nonetheless! You can still calibrate the gauge/sender by adjusting the stoppers as neccessary anyway.
Regards
UKDJ
Regards
UKDJ
QBee said:
phazed said:
Webby66 said:
When i first picked the car up i did run out of fuel!! Gauge was still showing some in her!!
ditto with my 5.5, runs out just after one quarter full.After putting about 3 lts in from a can it fired up and drove me to the nearest garage without a single judder or hiccup.
It drove perfect from being completely empty
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