That's your reply?
Am I wrong here or are you being a smart aleck?
It sure seems like your just muddying the water with mentioning gas engine possibilities because you have an issue with the OP using the term "ignition switch"?
You know the OP doesn't know what the switch is and is asking for help, not playing a game of "gothcha".
It should also be obvious to you that's he uses the general term "ignition switch" since he mentions the "ignition switch" on his other diesel too.
BTW, the ignition in a diesel engine is controlled by this switch.
Maybe I'm all wet on what the intent of your post was, I hope so.
Thank you Quicksandfarmer for providing the answer the OP was looking for.