Gas gauge works then doesn't...?

[2001redfireGT]

I had the same problem until i had ZZP install their SSM90 kit along with a couple other things. I mentioned the same problem you are talking about and they were able to fix it. I don't want to tell you the wrong thing since i am not totally sure how they fixed it. Email ZZPerformance and ask them about it. They will be able to tell you a better, more precise answer. Hope this helps!

thank you! hopefully they wouldn't mind describing what it is/how to fix it. i'll see what I can find out!

[Sabrewings]

Fuel level sender. Replace it. Yes it's a common problem.