MPG gauge

Need technical Q/A then you're in the right place

Moderator: martauto

Post Reply
User avatar
road_rescue
E30 Zone Newbie
E30 Zone Newbie
Posts: 3
Joined: Fri Oct 05, 2007 11:00 pm

Sun Nov 04, 2007 6:04 pm

Hi all,
I wonder if anyone can help. My MPG gauge on my F plate 316 doesn't work correctly- when the car starts it sweeps round to the 0 position, and stays there.
I dont think its the SI batterys- the rev counter and service lights all work as they should.
where does the mpg gauge get its data from? is it a vacum gauge or a throttle position sensor?
I only ask as a previous owner has "modified" the filter and replaced it with a K&N, and I keep finding wires/conectors/rubber pipes which i'm sure at some point went somwhere...
Any help gratefully received, i have only had the car a month, and i'm allready a convert!
karaokebykris
E30 Zone Newbie
E30 Zone Newbie
Posts: 217
Joined: Sun Jul 30, 2006 11:00 pm
Location: Staffs
Contact:

Sun Nov 04, 2007 6:10 pm

Is the car a 316 with the 1.8 carb (M10 engine) fitted?
It is meaningless to ask; which is real, 'real' or imaginary? It is simply a matter of which is the more useful description

"One valuable thing to remember is that light tavels faster than sound, some people appear quite bright until they speak
User avatar
road_rescue
E30 Zone Newbie
E30 Zone Newbie
Posts: 3
Joined: Fri Oct 05, 2007 11:00 pm

Sun Nov 04, 2007 6:13 pm

yup, carbed with 1.8 lump
karaokebykris
E30 Zone Newbie
E30 Zone Newbie
Posts: 217
Joined: Sun Jul 30, 2006 11:00 pm
Location: Staffs
Contact:

Sun Nov 04, 2007 6:14 pm

If it has the weber conversion on it (most do) the mpg gauge won't work I am afraid!

Small price to pay though as the weber upgrade is much better than the standard carb
It is meaningless to ask; which is real, 'real' or imaginary? It is simply a matter of which is the more useful description

"One valuable thing to remember is that light tavels faster than sound, some people appear quite bright until they speak
User avatar
road_rescue
E30 Zone Newbie
E30 Zone Newbie
Posts: 3
Joined: Fri Oct 05, 2007 11:00 pm

Sun Nov 04, 2007 7:29 pm

not sure what carb it has- i'm not too fussed about the gauge realy, just a bit troubled by all the hoses/conectors that appear to go nowhere
User avatar
Brianmoooore
E30 Zone Team Member
E30 Zone Team Member
Posts: 49358
Joined: Mon Jan 10, 2005 11:00 pm

Sun Nov 04, 2007 10:16 pm

If it does have the Weber conversion, then there WILL be plenty of disconnected hoses and wires. The Weber is a much simpler animal than the original.
Post Reply