Yes I knew turning the key off would make it stop I left it on to see what it was actually doing.I bet he looked silly.
Of course. No oil pressure.
Turning the key "off" would probably have shut down the injectors and the spark (clicking).
The last time someone on this site had that happen, it was the ignition module--sending false signals to the ECM.
The ECM didn't know they were false signals, so it fired the injectors to match the pulse rate of the module. Which, in this case, was fast enough to peg the tach.
Why a module would do that is beyond my pay grade--but one wonders if it was a bottom-feeder Chinese module.
"I" would put in a high-quality module, pull all the plugs and crank the engine with the ignition power disconnected from the module to clear-out the gasoline in the cylinders. Then install the (cleaned? new?) plugs, connect the power, and run the engine.
You disconnected the battery on an OBD-1 vehicle. There aren't going to be any codes.
The distributer I got yesterday came with a cap, rotor, and ignition module. If you have a specific brand of part that you think is high quality please let me know.
Thanks for the advice on clearing out the gasoline in the cylinders I will do that today and I have new plugs ready to go in.
Battery has been disconnected all night, anyway thank you for the advice much appreciated.