Were my airbag did not deploy I suvered severe injuries and had to be taken to the er. Do I have a lawsuite?

Whether you have a lawsuit depends upon many variables. I assume you mean can you win a lawsuit against the vehicle manufacturer about the airbag? A few of the variables to be considered are:

Did the airbag fail to deploy because it was somehow defective?
Would your injuries have been prevented had the airbag deployed?
Did your conduct somehow negligently cause the accident?

See a personal injury attorney for a free consultation to see whether you have a case.

Working in the Automotive industry, I would like to point out that airbags are NOT guaranteed to deploy in the event of an accident.

Did the driver's airbag deploy? Were you wearing a seatbelt?

Whether you have a case also depends on whether you can show that your injuries would be less severe if the air bag had deployed. For example, if the car is equipped with only a front air bag, and the accident involved being struck from the side or from behind, then the air bag may not have helped even if it did deploy.