Gas Gauge not reading

General Mazda MX-3 Discussions
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AustinPM1
Junior Member
Posts: 6
Joined: May 29th, 2002, 2:01 am
Location: Bridgewater, NJ

Gas Gauge not reading

Post by AustinPM1 »

I've had a problem with my 92 mx3 for a little while now and i want to see if its something i can fix myself

when my tank gets below about 1/2, the needle on the dash drops all the way to below empty even though i know i've got about 4 or 5 gallons of gas really in the tank.

i've been able to figure out a workaround where whenever i get a fill up on gas, i reset my trip meter to 0 knowing i'll get about 300 miles before i have to start looking for a gas station.

ps-the fuel light DOES still work warning me when i'm just about to run out but i use the trip-meter technique most of the time since i don't like to get that close to really empty.

any ideas what part might need replacement/service for this? something i could order and actually replace myself?

Thanks
Austin
Grants
BANNED Member
Posts: 1969
Joined: July 8th, 2004, 2:01 am
Location: Australia

Post by Grants »

It would have to be either the sender unit or the gauge itself. I'd bet on the sender unit in the tank. If you look at page F2-112 in the online manual you can see where the sender unit is. I've got a test procedure here if you want to have a go at it yourself. You need to remove the sender and check the resistance with an ohm-meter over the movement of the float.
“You’ll find, that the only thing you can do easily is be wrong, and that’s hardly worth the effort.”
jimishadow
Regular Member
Posts: 568
Joined: February 25th, 2004, 2:01 am
Location: pa

Post by jimishadow »

if ya need a sending unit from tank, or gauges i have 4 wrecs, pm me
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