After changing my spark plugs and wires in a toyota siena 2000 my car shake a lot i dont know what's the problem some advice please, and please tell me what is the sparking order and may be the problem with the wires wrong installation, how are they installed from plug 1 to 2 vise versa...

It's not the plugs. I would look at the coil/s or ignition module. Also check for codes. Could be the crank sensor is bad.

Before changing anything do some test. first check for spark by removing a plug wire and grounding it out on engine block as you have some one turn it over DO NOT TOUCH THE WIRE OR ENGINE WHILE DOING THIS A LOT OF VOLTAGE..WEAR GLOVES . spark should be very blue in color orange color is bad spark, no spark is a bad coil. make sure it is getting gas fuel pump could be bad.

no engine stated (which one?)_ 2.0L 16valve?

you didnt do sparks 1 by one, and mangled the firing order.

bad boy,

or set the spark gap wrong, or used china junk rotors, that index 3 ways, or all the above.

when working old dizzycars. (dizzy at flywheel end of CAM)

1: mark the cap for #1, follow the #1 cylinder spark wire to cap

mark the cap, post as #1 or be very angry soon,,,, i promise./

2 : the replace wires 1 by1 , if not , it will never run.

3: also know dizzy rotor direction, crank and look

CCW or CW.? write it down. for later.

firing order is 1,3,4,2. in the direction in above line.3



if you need to start from scratch we can.

the FSM covers that. so does alldata.com

ENGINE STUMBLING IS A CYLINDER MISFIRE COULD BE CAUSED BY BAD IGNITION COIL BAD SPARK PLUGS OR WIRES,FUEL INJECTORS COULD NEED TO BE CLEANED PARTIALLY.STOPPED UP FUEL FILTER.LEAK IN THE INTAKE MANIFOLD.

the easy way would be to remove the upper intake to get to them, i would also replace the sparkplug wires while your at it,you dont have to unhook everything just need to move it to the side.

sounds like you got a wire on wrong.
have to take old plugs out and put in new ones.
need tools to do it.

You may have put the wires in the wrong location, usually there is a diagram located under the hood to tell you where the spare plug wires goes, also located in the operators manual there should be the diagram for the spark plugs.

sounds like bad spark plug wires, with the engine running in neutral and emergency brake on, spray the top of the engine over the spark plug wires with a spray bottle of water, if the engine runs worse or stalls, or you see small sparks, then its the spark plug wires.

try a new crankshaft sensor not hard to change 2 bolts and a wire

REMOVE THEM ONE AT A TIME THIS WAY YOU DONT GET THEM MIXED UP.