What is the spark plug firing order on a 1983 Chevy El Camino v6 3.8

It can only be a faulty switch. See the two spade connectors here? Remove your connector and put two wires direct to the battery. If it stops and starts as normal when you make and break the connection, it proves it is the switch that is faulty.

https://www.ebay.com/itm/For-1971-1983-Chevrolet-El-Camino-Washer-Pump-43944ZX-1975-1972-1973-1974-1976/293378902797?hash=item444ebecb0d%3Ag%3AlJEAAOSweoRd9peG&fits=Year%3A1983%7CModel%3AEl+Camino%7CMake%3AChevrolet

and the switch

https://shop.advanceautoparts.com/find/chevrolet-el-camino-wiper-and-washer-switch

..

https://workshop-manuals.com/chevrolet/el_camino/v6-229_3.8l/maintenance/tune-up_and_engine_performance_checks/firing_order/component_information/specifications/ignition_firing_order/

There's a website that has all this information about all this and manuals everything totally free there are many actually but I personally like few like reliable-store .. let me know if u need help
thanks

www.gmheritagecenter.com/docs/gm-heritage-archive/vehicle-information-kits/El-Camino/1983-Chevrolet-El-Camino.pdf

the oil dipstick is located just below spark plug 6

Had an 84 silverado 305 that did the same thing. Try giving it a full tune up. Plugs, wires... Mine turned out to be fouled plugs. I didn't find that out till after i tore it down & put a timing set in it. Wasn't getting good enough spark.

firing order is 1-8-4-3-6-5-7-2 rotation is clockwise

check the wires for loose connection and the fuse or fusible link.

I have a 1983 Royal Knight SS. Had the same problem. Had my wiper motor and washer pump replaced. works like a dream now. replaced my original combination turn signal wiper switch on steering column and now have good working intermittent wipers. It is great to see driving in the rain now. Jackson  in ATL

FUEL OR SPARK WINDOW PROBALY A QUINKEDINK