Whilst driving I noticed that my fuel said I had 110km of fuel left. Then when I stopped a Lights the car cut out, when I tried turning back on it wouldnt start and the gauge said 5km of fuel left. I put 5Litres of fuel in and the gauge went up and down from 250 km to 110kms but the car still wouldnt start. it is trying to start and every once and a while it would but be very laybered but as soon as i pump the accelerater it cuts out again. I ve tried changing the fuel pump relay but still wont go. Please help....
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the fuel gauge works on an electric pulse. if it is unplugged it will go to empty if it is plugged i it will go up as fare as the tank is full. if it goes higher then the known fuel lvl. you have a bad gauge if it goes up and down when you know it is full you have a bad connection
hot or cold engine , or both.?
the oil pressure will be in direct ratio to engine rpm. slow low, fast high
due to the oil pump connection to engine crankshaft.
stalls.: can be caused by 50 things, or just 4 in physics.
the EGR valve (if you have one, no engine stated)
can stick open and stall any engine, and in fact LOVES to. clean it.
1: list 12vdc to EFI. (spark and fuel brain) dash lights dim?
2: lost compression hot, ? compression tests.
3: lost spark, do spark tests. and timing, checks.
4: bad fueling, too much if floods, and misfires and stalls.
too little fuel, it starves and dies.
the 1 free test, is can you save the stall with a fast right foot.
we do the tests. avoiding those 50 guesses....
each tests are simple and the tools dirt cheap .
Sounds like you have a fuel issue. It could be a fuel pump cutting in and out. It could be fuel pressure regulator, or an injector not spraying correct. I think it's time to find an honest educated repairman.
Modern plastics seem to exude something that collects on all the surfaces inside the instrument clusters of many cars. When it settles on the pointers of instruments like the speedo and fuel gauge it produces the effect you mention, sticking the pointer to the rest stop until the meter has enough oomph to pull it free or you go over a bump.
If you have a good magnifying glass you should be able to see what's creating the problem by looking at the ends of the pointers..Actually, just condensation can do the same thing but it's not so sticky and you'd see a mist in the perspex cover too. Since the speedo and fuel gauge control comes from completely different areas these are the only thing I can think of that may link the two things. A couple of extractor hooks from MB would allow you to pull the instrument assembly from the dash. Disconnect the battery if you go this far as it's so easy to short something behind the instruments. Then it's a question of unclipping the two connectors at the back, pulling the cluster free, and unclipping the perspex cover. The procedure's well covered in the Haynes manual.