This 1994 Oldsmobile 88 Royale came in with a complaint of an intermittent no run condition along with an intermittent no power window condition as well. If one system was okay, so was the other and when one was acting up, the other one was as well. This is a very common problem, and I have been waiting a long time to find one of these vehicles with condition. The problem is located under the driver’s side carpet.
There is a ground gang connector under the carpet on the driver’s side, that for a multitude of reasons fails. The most common cause is water damage like this one.
If you double click on the pictures you will be able to see the corrosion and moisture.
I removed the cover to inspect.
The internal terminals.
The damaged comb connector.
I was able to clean the comb connector and replace the damaged terminals. I packed dielectric grease into the connector to help keep moisture out and reassembled. If needed one can cut all of the ground wires loose and connect them all together using standard splicing terminals.