The car starts but the motor is real weak when i put d it wants to turn off and loses more power and in spark plug 1 and 4 there s no spark

it needs a thorough tune up,,,,plugs,wires,distributor cap,coil,etc

the indications are that the battery is weak. Even though it is a new battery. When it is running the power for the ignition system is coming from the alternator. have a load test done on the battery and check terminals and posts for shiny clean and tight.

starter motor weak. weak battery or engine is seized. take the spark plugs out and turn engine over with spanner on the bottom bolt on the pulley. if thats fine and move the engine freely then check the battery try a jump off a good battery. if not good and still will not start with the spark plugs back in then the starter motor is weak and needs changing. can do any of these in any order you like.

Test the Coils . The coil produce the high voltage for wire plugs+spark plug+motor. If the coil is defective you ignition system can be wrong. see the diagram attached.
God bless you

sounds like a wiring problem, will it crank over? you may have burnt a fuse or a fusible link, you may have burnt through a part of the wiring harness etc.

Any Starting problems??? Low fuel pressure,weak spark.restricted exhaust plugged converter,check engine vacummn at idle, check spark at plugs look for at least a 1/4 inch spark to ground.LOOK FOR BAD VAC LINE TO FUEL REGULATOR.

Plugged fuel filter, gasket leak, vacuum leak, or weak spark

pull out one of the spark plugs plug it in to plug wire run a jumper wire to the body or hook of the plug to ground the jumper must go to a suitable ground. pull out pcv hose to prevent car from starting have an assistant turn over the engine while you check for a strong blue or purple spark if the spark looks white or yellow there is a weak ignition condition and this must be adressed, bad ignition module bad cap and wires, etc. do the cap and rotor first if the spark is weak. If there is a strong spark sometimes holding the gas pedal to the floor while turning over the car for no more than 10 seconds starts stubborn motors do not let up on gas if car begins to start not until the motor starts to rev up.

Sounds like a weak battery, or a bad starter. Can you put the plug back into the motor, once the motor is running??????

No it has not been overheating or losing coolant at all it just has been running rough and poorly (loud) it was not smoking till he took out the old spark plug and put in the new one he said it was smoking out all that had been backed up into the cylinder due to non working spark plugs (there was oil on the spark plug)