I recently had my 1990 Ford Thunderbird V6 engine rebuilt. I got everything put back the way I found it - with one exception. I can't find what the low-oil-level sender in the side of the oil pan connects to. The obvious place to look is the wire harness on top of the engine which connects to the engine electronic control computer or the instrument panel via two wire bundles coming through the firewall on the passenger side. I can't find a matching connection on the harness or anywhere in the engine compartment. Before I take the upper intake manifold off so that I can look at the harness once again, maybe someone can simply tell where to find the connection.