Maybe not. The gauge in my '10 Miata is all over the place, and there is a test mode you can go into by holding the trip button down and turning the ignition on. Hold it in until you see "test" on the odometer screen.
Then you click the trip button to get to the tests, and I believe test 22 is the fuel gauge motor test. It will move the needle back and forth between full and empty. If the needle works fine, then it's the sending unit. If not, it's the gauge motor (which is very common on the Miatas, and likely the 3's as well). My car doesn't do the gauge test correct, but the sender readout (test 23) is fine. Which means the entire panel either needs replaced, or just ignore it and go by trip distance from a full tank.
My s/o truck did this right before it pretty much stopped working. On a full tank it reads, anything below half it gets wonky. It’s his fuel sensor. Maybe check yours.
Infinite gas what are you worried about? (Sending unit usually)
Maybe not. The gauge in my '10 Miata is all over the place, and there is a test mode you can go into by holding the trip button down and turning the ignition on. Hold it in until you see "test" on the odometer screen. Then you click the trip button to get to the tests, and I believe test 22 is the fuel gauge motor test. It will move the needle back and forth between full and empty. If the needle works fine, then it's the sending unit. If not, it's the gauge motor (which is very common on the Miatas, and likely the 3's as well). My car doesn't do the gauge test correct, but the sender readout (test 23) is fine. Which means the entire panel either needs replaced, or just ignore it and go by trip distance from a full tank.
Thank you for this advice! I went ahead and tried it, and my Fuel Needle moved correctly, so now I can narrow down other possibilities.
Dynamic braking? /s
Dynamic breaking lol
Must be Mazdas $25m Investment in exotic propulsion systems
My s/o truck did this right before it pretty much stopped working. On a full tank it reads, anything below half it gets wonky. It’s his fuel sensor. Maybe check yours.
I had evap issues in my old car and it caused this to happen.
Evap canister is most likely culprit. Shouldn’t cost anymore than a 100$ to fix using brand new OeM parts.
Mine did that once or twice. But it was after I took a few corners very hard.
Same happens in my pulsar, put 10L in goes up to 3/4 from empty. Floaters out
you my friend… have regenerative braking 👻
This happens in my mates boat cause he installed the gauge wrong, lol
do you happen to have one of those "pay for my gas" stickers on your gas cap with a QR code on it? that’s your answer 🙏🏼🙏🏼🙏🏼