This work presents a novel numerical strategy for studying the electric discharge produced by a vehicular spark plug in dry air. For such a task an axial symmetric 2D domain is used. The starting gas mixture is formed by molecular nitrogen and oxygen (8:2 ratio). The mathematical model considers heat and species diffusion and convection jointly with a discrete sub-model for energy transfer in electronic, atomic and molecular collisions. Chemical reactions between species are also included. Solutions of source terms is accomplished in the frame of ZDPlaskin, a zero-dimensional plasma modelling tool. The used plasmochemical kinetics model includes 53 species and 430 processes. Experimental properties from an actual spark plug discharge are introduced to the simulation. Spatio-temporal evolution of species concentrations are obtained within this model. Gas temperature evolution and species distribution is discussed and compare with available values in literature. (C) 2018 The Combustion Institute. Published by Elsevier Inc. All rights reserved.