I changed spark plug wires an spark plugs an car wont start

If you didn't change the wires one at a time,you are probably mixed up in firing order. Pull them all,get a picture of order from your local parts house and start over.

Double check to make sure you didn't accidentally unplug and censors on the harness. Also check your fuses. for you ignition.

It's already not start before you changed or after changed ?
If before. the timing belt or might be broken , burn fuel pump's fuse, injector's fuse or main engine relay.
If after. It's possible miss some wire that still not connect.

Mai

Take a plug wire off hold the metal part near a good ground, and have somebody turn the key, while you hold it with something isolating you from the wire, like rubber handled pliers. observe for bright blue spark, no spark? Then you have a problem.

CHANGE SPARK PLUGS.YOU NEED SPARK PLUG 3/8 SOCKET.YOU NEED SHORT AND LONG 3/8 EXTENSIONS.YOU NEED SPARK PLUG BOOT PULLER AND A SPARK PLUG GAUGE SET THE SPARK PLUG GAP.NOW CHANGE 1 SPARK PLUG AT A TIME SO YOU MIX THEM UP GET FIRING ORDER MIX UP CAR BACK FIRE WONT CRANK.ALSO CHANGE PLUG WIRES ALSO.

did u mix the plug leads up when u replaced them wrong firing order 1342

Check the starter relay.

check timing belt!! good luck!!

Do you have the "firing order" correct? In other words, is each spark plug wire going to the same cylinder it was on before you changed the plugs? If you have done nothing else but changed the plugs then this is the most likely problem.
If when you try to start the car it backfires through the exhaust or backfires through the intake. Then this " IS" the problem. Good luck.

check the plug wires make sure tere are lined up propely then double check the spark by removing the #1 plug and see if it sparks when some one ealse trys to start it word of advice don't be hoding plug wire when they start it