94 camaro wont start its not the securtity feature.I replaced starter, altenator,battery,spark plugs,and spark plug wires.I turn the key foward and get nothing.

year make and model. could be starter, spark plug wires, spark plugs, or fuel injection/carburetor issue. Also if your altenator is going, it could affect your battery, which in turn would cause issues with starting.

Does the engine spin over and not start? Or turn the key and nothing happens?
New spark plugs and wires won't have anything to do with the starter and battery keeping the engine from spinning when you turn the key.
Need more specific explanation. Thanks,
Scott

Auto zone has free repair guides on the site. Make a free account and put in the year make and model and then look at the electrical diagrams. It is doubtful that the alternator is causing your lack of power though

check the key I have 1992 camaro rs I took it some where and parked it came out and went to start it and it didnt do anything key would turn over no sound no lights nothing. My key had that anti left chip pretty exspensive to replace key needs to entergrated into the comupter. Just a thought.

You will have to check, at the starter, for power to the SMALL wire on the starter solenoid (which is on the starter) when turning the ignition switch to start.
If there is power to this wire ( usually purple ) and power at the LARGE cable ( from the battery ) at the starter end.....you need a starter.

If you do not have power at the small wire at the solenoid with the key in start position and battery power is OK.....check the safety neutral switch.Moving the shifter around a little can sometimes allow the car to start if the neutral switch is worn.

A new battery does not always mean a fully charged battery.
Try a boost from another car before testing the starter for power.

The battery cables need to be clean and tight....and check the ground to the engine as well.

Everything else may work OK with bad connections,they don't use the power the starter needs to turn the engine over.

Dont panic, you can do this. First you must get a multimeter. Their cheap at harbor frieght 5 bucks. Then check the battery, car off, should be 12 volts. car on 13,14 volts. Possibly the ignition switch wires are touching. That of course would be a short. Also try to jump start the car, if it turns over you found your problem. If not you must start check the connections from the battery. follow the wires, negative to frame, make sure its tight, positive to starter make sure its tight to starter post. Use meter to check for power on the wires. Okay buddy good luck.

First place to look is in the wires from the battery to the starter and the battery to the ground... got corrosion? this can really choke off the flow of electricity to the vehicle... check both ends of the starter cable and the ground from battery to frame (or block or trans) any kind of green or white deposits indicate it's time for new ones... this can be tricky because the corrosion can be inside the insulation on the wires... if corrosion is bad enough even a jump won't start the vehicle as not enough voltage will reach the coil... if the wires are good then it's time to check the coil and it's wiring... if you aren't real savvy at testing components with a meter then replace the coil (assuming good wiring) and test for spark by holding coil wire about 1/4inch from the block or any good ground while turning engine... you should see a nice blue spark... hope this helps...;-)

i would start by replacing the selenoid and having the battery and starter tested. then go on to plugs and wires

if the starter is revving very slowly it is the battery, charge battery. if not, It can be three things happing. 1 no spark 2 no fuel 3 no crank signal or the car computer is bad- you will need to unplug one of the spark wires and remove the spark plug and put the spark plug in the spark plug wire boot, and touch the spark plug on any metal on the car and have some start the car. donot touch the spark plug itself and see if there is a spark. if spark is bright, then it is not spark plug and wires but if no or spark is not bright, check the spark plug wires by applying a little bit of water on the spark plug wire and take a 12v test light, connect the clap to ground and and have some one to crank the vehicle, touch allover the spark plug wires with the tip of the test light, if you see spark, replace the wires and change the plugs.. they are not good. if spark is present, check for fuel by removing any one of the spark plugs and see if it is wet. if wet fuel pump is ok but if not go look for the fuel pump fuse and relay. is fuse blown, replace, check the relay resistor with a volt meter. it should be around 40 to 80 ohm. if everything is good from this point check the fuel pump itself by disconnecting the connector to the pump and apply 12v and ground using jumper wires or some wires to the fuel pump if you donot hear the pump,replace pump. if you, the crank signal or computer may be the problem

Check that you have pushed the spark plug wires fully home on the spark plug. If it's not turning it could be the solenoid that connects the battery to the starter motor when trying to start or simply a flat battery. Check battery first, check solenoid by listening to a click sound, check starter motor for connections check any related fuses.