Smilestar here are some ideas for your consideration:
1. Research online what engineers with similar education, experience, and certifications are making in your area. BLS.gov is a good starting point. General Google searches work as well.
2. If you had performance reviews in the last three years find them. If your reviews for the two years where you got no raise were either satisfactory or exceptional, you should raise that as an issue.
3. Since you have adopted a position of greater responsibility, if you are performing that adequately then you have a valid argument for a raise.
4. Your position of greater responsibility coupled with your recent PE license should be strong arguments in your favor.
5. Regarding Tim's advice, I don't agree with forcing your employer to make counteroffers. If you are seriously thinking of moving on to another job, then do so and negotiate appropriately.