Plug wire placement

Best take it to the dealer.

you may have poor ignition wires that need to be replaced or a bad electrical connection that is affected by water either for the ignition system or the fuel injection system. just some places to look.

Depending on the year, it's likely bad wires or a bad distributor cap. You can recreate the problem when it's dry by filling a squirt bottle with salt water and spraying the wires with it while the truck is running. You'll either get a nice light show or it will start to stumble/stall.

Do you have distributor cap,could be bad or crack.do not buy cheap.

You will have dry all ignition components ... You have a distributor that you can open? Get a drying agent from your auto parts store (spray can) and spray all high voltage wires. Next sunny day, roll the Vette into the sun and leave the hood open all day.

I don't know for sure either - many newer cars don't have distributor caps. The easiest way to accomplish the task is to trace a couple of spark plug wires back from the engine block to the coil pack or distributor cap - whichever you have. Wipe off any water on whatever these wires go to. If you have a cap, and if you are having rough-running problems, take off the cap and wipe out the inside with a clean rag. Coil packs should be hermetically sealed and the only place for a problem would be right at the spark plug wire connection terminals or possibly at the low-voltage connection.

A quick way to distinguish a distributor cap from a coil pack if you don't know the difference: count the high voltage wires. The distributor will generally have one more than the number of cylinders; the extra goes to a separate coil. A coil pack will wires going to two cylinders in each section, but will never have more high-voltage wires than the number of cylinders.

You should also inspect the air duct, especially the air filter. Dry out any water here just to make sure you don't **** mud into the engine.

A car will stall when driven through standing water if the ignition system is not watertight. Worn spark plug wires and coil wire, improperly seated spark plug wires, or loose distributor cap are all possibilities.
There is a spray called CRC or some agent that promotes a water drying action can be used to dry out a wet distributor cap and wires. Drying off the electrical components will remove the moisture that is grounding the electrical energy that should normally go directly to the spark plugs.
If car will not restart after stalling from the water splashing as described in the question - and the poor condition of the electrical system is ruled out, some water may have passed through the air intake into the engine and perhaps into the cylinder. If this happens have the car towed to a repair shop where they can remove the water before any further damage results. This condition is not easy to occur but a real deep puddle can set the stage for water to be sucked into the air intake and pass through the filter into the intake and through the valves into the cylinders. This is why you see a Hummer with a snorkel - for wading through deep water

your engine electrical system is wet and needs dryed out,try spraying silacone oil all over the engine wires and dry of all excess water with a dry cloth or the[ hairdryer not to close].adrian,,,,,,,,

tune it up,plugs,wires,rotor and dist.cap if equipped,clean butterfly in throttle body,has carbon build up.use tooth brush and throttle body spray cleaner.when starting,never touch the accelerator,this will make it go in the limp mode or throw a code

It sounds as thou you have moisture in your distributor.Pull the distributor cap off and let the car sit and dry out for a couple of days and see if that fixes the problem.