An experimental research program focusing on design, development, and testing of a novel nonequilibrium plasma ignition module is proposed. The ignition module will be based on the use of diffuse high-pressure transverse discharge technology recently developed at Ohio State using Air Force support. The proposed research is of critical importance for development of nonequilibrium plasma igniters modules for airplane jet engines. The primary objectives of the proposed research are (i) extending the use of the new nonequilibrium plasma ignition / flameholding method demonstrated in previous research by the current proposers to higher static pressures (up to P=0.5-1.0 atm), (ii) measuring the NOx emissions in the pulsed plasma stabilized flames and the plasma power budget, and (iii) studying the effect of the pulsed plasma on flame blow-off and relight. The proposed research will be conducted using gaseous hydrocarbon fuels. The results would have direct impact on development and the use of nonequilibrium plasma ignition modules for lean combustor operation and high altitude turbojet relight. The results would also elucidate kinetic mechanisms of plasma assisted ignition and flameholding.