Random misfire on Vauxhall — 1.4 Turbo is coils & timing chain, 1.6/1.8 Z-series is usually plugs or coil pack.
Bob's Mechanical Repairs — independent family-run garage in Birnam, Dunkeld, Perthshire. Call 01350 727 276 or email bob@bobsmechanicalrepairs.co.uk.