Fuel Sensor CELs

[Fat Beezy]

Hey, I've searched everywhere and there doesn't seem to be any Supra-specific threads about these two CELs I just got: 193108 and 193008. They are for "Fuel fill level indicator; law/links; plausibility: CAN implausible value", with the BMW sites saying "Fuel level sensor, left/right, signal..."

On BMW forums, they point to possible Fuel tank or LPFP issues.

It started a couple days ago after attempting to do a battery replacement, but only got as far as to removing a few attachments before my coding dongle wouldn't connect, so I backed out and resecured the battery. Just refueled, and the gauge went up to full, so I'm not seeing any odd behavior with the digital fuel display. I'm wondering if a cord or something got hit when messing in the back on the battery, which is where the fuel pump and tank are located.

Any help would be appreciated, thanks.

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[razorlab]

Fuel pump and tank aren't anywhere close enough to the battery box in the trunk. Since you said you are doing a battery replacement, did you actually put a fresh battery in? If the battery is low, the DME can and will freak out. There are two connections to the battery. Positive and negative. Of course your dongle would stop connecting when the car loses power.

 

[Fat Beezy]

Fuel pump and tank aren't anywhere close enough to the battery box in the trunk. Since you said you are doing a battery replacement, did you actually put a fresh battery in? If the battery is low, the DME can and will freak out. There are two connections to the battery. Positive and negative. Of course your dongle would stop connecting when the car loses power.

No new battery yet, we didn't even disconnect the current one. I tested the dongle first, and it wasn't showing up on my phone. The car was fully functional, and my other OBDII dongles were working, it's just that specific one (OBDLink CX). I've ordered a different one that will be here tomorrow, so I can install the new lithium battery and code it.

But it likely could be related to the battery, as yes the reason I'm replacing it is because I've gotten a battery-related CEL (intermittent) and it's the original from ~5 years ago. So after I change that tomorrow we'll see what happens. But these are new CELs so just trying to research if it could be something else.

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