Your car was stolen and you replaced the battery started but radio didnt work nor would accelerate is this engine immobilizer?

Yes, it seems like your car's engine immobilizer may have been activated after the theft and battery replacement. An engine immobilizer is a security feature designed to prevent unauthorized use of a vehicle by disabling the engine. When a car is stolen, the thief may disconnect the battery to disable the immobilizer, but when the battery is reconnected, the immobilizer remains activated. This can prevent the car from starting or accelerating properly.

To resolve this issue, you may need to have your car towed to a dealership or automotive locksmith who is authorized to work on your car's make and model. They will be able to diagnose the immobilizer issue and deactivate it if necessary, allowing you to start and drive your car again.

It's important to consult a professional for this task, as attempting to bypass or modify the engine immobilizer on your own could have unintended consequences and potentially compromise the security of your car.