Does spark piug still fire if anti theft is on

Any DTC Diagnostic Trouble Codes?

There are so many things that could be wrong. The best bet is always a good auto-electrician with a pro grade scan tool computer.

Is the security light lit - anti-theft ? symbol of car an a padlock . No fire ? you mean it has no spark ? Or it cranks an won't start an run ,which means you have no clue if it has spark from the ignition system . Battery Disconnect or Replacement Problems

Hello,

The key has the chip for the anti-theft--may not be the anti-theft.
TDC/Firing Order/fuel/spark/compression/timing chain alignment (dots)
TPS (Throttle position sensor) - Bypass by holding gas pedal down and starting.

Hope this helps--

You pulled the wires to test anti theft. Or pulled them to see if there was spark because of anti theft? Year make and model helps. Older cars did kill the spark. Newer ones on kill the fuel.

The anti security light just stays on no matter what I do. And it want let the car do anything

General anti-theft devices are connected with the original car ignition switch wiring harness on the firing line first connected to the anti-theft device, drawing a line of fire from the anti-theft device into the ignition switch. You can the combination switch the first guard removed, and then find the ignition switch, disconnect the two lines you will be connected with the anti-theft device, FireWire directly to the original vehicle wiring harness plug connected to the ignition switch on, you can normally start.

Check if equipped for anti theft system. Usually the anti theft will allow for initial spark and then kill the fuel injectors!
Disconnect the battery and have it recharged and tested, if it fails the test replace it. Use the key and manually lock and unlock the drivers door if the alarm is still set, There is a switch attached to the door lock that disables the anti theft. If the driver's side is defective switch you have to do this from the passenger door.

Hope this helps?

need to find out why anti theft on --usually either worn key or worn ignition cylinder all the tricks in the world wont start vehicle thats why iits called anti theft

check to see if the security light or anti theft light flashes. if that is the case, sounds like the bypass for the remote starter may be causeing the no start by tripping the anti theft system. Remove remote starter and bypass system and join any cut wires back together that may be cut for remote starter. Try starting, if theft light still flashes leave key in the on position after attempted start for 15 minutes till theft light goes solid, turn off and try again. Repeat process for three times to re-learn factory theft system in vehicle. If problem still persists, then take to your local dealer to reprogram factory theft module in the cluster.

Tell the guy to call the dealer and ask them how to override the anti theft system or reset it. when you disconnect the battery and lose power it kicks on the anti theft device and it won't get fire.