alright so in my eg sedan the gas gausge in the cluster isnt working properly
i checked all the wiring and everything is in tact
i played with the plug a lil yesterday and it went down to half tank and then went right back up to past full
i even removed the glass and moved the needle down and plugged it back in and it still went up past full
dont know what it is sooooooo if anyone does please help lol

 

You risk damaging the gauge by moving the needle. Avoid that.

Use a multimeter to check whether the wire that runs from the cluster to the sending unit connector has a short.

 

already did
it came out good..but there is a bunch of goo on the conector
does that affect anything

 

Describe the test that you did and what the multimeter reading was.

That's probably just dielectric grease. Post a picture.

 

 

and my buddy was the one that did the test
im not super good at electrical work and he is so he did

what test should be done so i can ask him and make sure he did it right

 

Dielectric grease seals the connector from moisture. Don't remove it.

Ask him to describe the test that was done and what the multimeter reading was.

 

im waiting for a reply from him
what should have been done?

 

The proper test is to look for continuity to body ground (=short)

 

and how do you do that test

 

Unplug the sending unit connector on the fuel cover. Set multimeter to measure resistance (Ohms), or continuity if your meter has that feature. Touch one meter probe to the fuel gauge wire (Yel/Wht wire terminal) in the connector and the other meter probe to an unpainted part of the metal chassis.

 

alright ill try.

 

one came up as 0.08 and the other came upas 0.00
the car was off..does the key have to be on?

 

One what? Do you have a digital multimeter? Are you measuring resistance (Ohms)? What Ohm scale is your meter set to? Or is it auto ranging?

Key off

 

alright so after testing it i looked at the cluster and the needle went all the way down
then i plugged it back in and it slowly started going up
it hit half tank and stopped for a min
i turned the car on and it went all the way passed full

 

This happened when the sending unit connector was unplugged and the key was in ON(II), right?

Only with key in ON(II), right?


After you started the engine, right?

 

yes as soon as i started the engine the fuel gauge went all the way back up
but slowly
and stopped a lil at the halfway mark
but now its stuck at past full mark

 

What's the answer to each of the three questions I asked?

 

the sending unit was unplugged with t the car off

then the car was still off and i plugged it back in and it started going up

thenwith car still off it went halfway then stopped

then once car was running it went fully back up

 

and i have an observation question

i was looking at the sending unit and at the plug
the sending unit looks like it has prongs on two of the three ports
the front one closest to the ftront of the car and the middle one and the one by the trunk looks emoty

now looking tat the plug
the one closest to the front of the car is empty and themiddle and back one have the two plugs in it

is the correct or wrong

 

even with the car on(II) and the sending unit unplugged the needle still ddoesnt go down