If you were pulled over while driving with a suspended license and with fictitious plates at the very least you should be cited for the violations. State laws differ so the penalties for driving with a suspended license and fictitious plates will also differ.
For example for a first offense for driving with a suspended license in Michigan has a maximum fine of $500 and a maximum of 93 days in jail. The court can always sentence the offender to less than the maximums though.
In New Jersey driving while suspended has penalties set forth in NJSA 39:3-40. This section states, "no person to whom a drivers license has been refused or whose driver's license or reciprocity privilege has been suspended or revoked or who has been prohibited from obtaining a driver's license, shall personally operate a motor vehicle during the period of refusal suspension, revocation or prohibition." The statute also prohibits the operation of a motor vehicle whose registration has been revoked.
Upon conviction of driving with a suspended license for the first time in NJ comes with a penalty $500. You will also be surcharged a mandatory of $250 per year for 3 years by the DMV. Additionally, the NJ statute states upon the conviction the court shall impose or extend a period of suspension not to exceed 6 months.
While in New Jersey a person convicted of displaying a fictitious number on their license plate, as prohibited by NJ law, shall be subject to a fine not exceeding $500.00 or imprisonment in the county jail for not more than 60 days.
In North Carolina statute 20‑111 (Violation of registration provisions) states that to display or cause or permit to be displayed or to have in possession any registration card, certificate of title or registration number plate knowing the same to be fictitious or to have been canceled, revoked, suspended or altered, or to willfully display an expired license or registration plate on a vehicle knowing the same to be expired is unlawful. The penalty is typically a fine though additional penalties can be assigned by the court.
To find out what penalties you may be facing, if cited for these 2 offenses, check with the court listed on the citation and your state's Department of Motor Vehicles.