Issues with Fuel Guage

00seven · Post by **00seven** » Tue May 10, 2005 11:40 am

My fuel guage doesnt go to E when I turn off the engine and pull out the key.

afterburner · Post by **afterburner** » Tue May 10, 2005 11:49 am

It's not supposed to

00seven · Post by **00seven** » Tue May 10, 2005 11:56 am

hmm usually mine does but lately it just stays in the same position.

00seven · Post by **00seven** » Tue May 10, 2005 1:29 pm

Does anyone else's fuel guage go to E? or do they stay in the same position?

mrdj1234 · Post by **mrdj1234** » Tue May 10, 2005 1:39 pm

check the voltage regulator for the fuel sender (i think it's located on the back of the instrument cluster) - you'll need a multimeter, a phillips screwdriver and a little patience

It's a common mitsubishi fault, the regulators burn out and you get wonky fuel readings. If you can do it yourself, a regulator costs about $4 from dick smith or jaycar.

otherwise check with your friendly neighborhood auto electrician.

This will also be the fault if:
- your fuel gague only ever seems to read up to 1/2 way
- your gauge has '"sudden drops" usually from 1/2 to empty in 50k (and you're not using MIVEC flat out

)

Grue · Post by **Grue** » Tue May 10, 2005 1:49 pm

Mine's always stayed in same position... you saying it's not meant to?!?!

00seven · Post by **00seven** » Tue May 10, 2005 1:51 pm

My fuel guage measures the fuel ok but when I turn off the engine and take out the key the guage doesnt go to E. Usually my guage goes to E but now it just stays in the same position

mrdj1234 · Post by **mrdj1234** » Tue May 10, 2005 2:09 pm

they go to E when the regulator's broken - the regulator is attatched to the parmanent 12V (unswitched) supply - what's probably happened if your gauge used to go to E and now stays where it is - you've probably just got a dry joint or a loose wire in the fuel sender harness - nothing to worry about until your fuel gauge stops working

(I should have been more clear in my oringinal post - the mitsi fuel gauges always show how much fuel you have - the regulator's always working, which is why they develop problems)

00seven · Post by **00seven** » Tue May 10, 2005 2:30 pm

I think i should make my question more clear. For example say my fuel guage needle is at full, when i turn off my engine the needle goes to straight to E. This is normal for my car until now.

Now when the needle is at full n i turn off my engine, the needle stays at full it doesnt go back to E like it usually did.

by the way thanks for helping out mrdj

scarecrow · Post by **scarecrow** » Tue May 10, 2005 5:48 pm

Mine always stays at the same position when switched off.

It works exponentially though. Like i'll get 120km to the first 1/4, then only about 150km to the remaining 3/4 of the gauge. I think it's rooted

mxysxy · Post by **mxysxy** » Tue May 10, 2005 5:55 pm

I realised that when my indicator exactly shows 1/4 of a full tank, its actualy 1/2 full. If I fill at that point, I only can put 30lts into the tank.
Mine also shows the petrol level all the times, never goes down to E when the ignition is off.

00seven · Post by **00seven** » Thu May 12, 2005 10:06 am

I get 80km for the first 1/4, then 100km for the remaining 3/4. Hmm i think my car is running inefficiently. I can only go around 430km on a full tank but before i cleaned my injectors i could only manage 300km. Anybody have any suggestions?

paladin · Post by **paladin** » Thu May 12, 2005 1:31 pm

my fuel gauge seems to be acurate and does this...
i get either 52l for 470kms ir 520kms for 48l depending on my driving mood (amazing how much you dont use if you only grind up to 3k)

mxysxy · Post by **mxysxy** » Thu May 12, 2005 1:55 pm

00seven wrote: I can only go around 430km on a full tank but before i cleaned my injectors i could only manage 300km. Anybody have any suggestions?

bit more injector cleaner perhaps.

00seven · Post by **00seven** » Thu May 12, 2005 3:10 pm

I cant even reach 500km... I 've cleaned my injectors 3 times now, I think its pretty much clean. I did see an improvement the first time i cleaned it but still not enough. I want to be able to get at least 500km from a full tank. btw everytime I drive I rev under 3k rpm.