Disassembled fuel level sender card on a fuel pump module

...this is after. DO NOT CLEAN the green areas since they provide the necessary resistance, and any cleaning can permanently change that. Note most of the black corrosion between the traces is gone. If the traces are damaged or corroded, the sender must be replaced. So far, about half the senders I've cleaned have worked afterward.

Owner caption June 2011 · Photo 3619 of 6546