Sticky MPG guage? Overfueling..

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rare
E30 Zone Regular
E30 Zone Regular
Posts: 590
Joined: Sun Jan 09, 2005 11:00 pm
Location: Sussex

Post Tue Aug 15, 2006 4:46 pm

Hmm, My MPG guage can only be described as sticky!! It seems to hang on to its reading i.e 25MPG long after I have stopped, say when I have got to traffic lights. If I rev the car quickly in nuetral it also makes the guage swing.

The car also seems to be overfueling a bit? I can smell it from outside fairly strongly. I orderd a blue temp sensor today but was just wondering if any one had any ideas with the guage issue? I imagine the two are connected.
Jos
E30 Zone Camper
E30 Zone Camper
Posts: 1104
Joined: Mon Jan 17, 2005 11:00 pm
Location: Belfast

Post Tue Aug 15, 2006 4:53 pm

The gauge just makes an interpretation between injector duration and road speed as far as I know. If the guage itself is ok then there might be a fuelling issue, the temp sensor is a good place to start. I also find if the oil service light comes on the needle does wacky things, sticks at 50mpg and swings about when at idle/stopped.
'89 Touring - slightly rippled with a rusty underside
'94 e36 tree climber