144Catalytic converter,exhaust gasesCatalytic converter for petrolenginesLeaded fuel will da mage the cata ly ticconv erter and parts of the electronicsy stem, rend ering them inoperative.Use of high-qua lity fuels other than thosespecified on p age 142 (e.g. LR P1 ) ) coulddamage the catalytic converter.On vehicles with a c atalytic converter, thefuel ta nk filler nec k is of a narrow design sothat a dispensing pump for leaded fuelcannot b e inserted .Dama ge to the catalytic conv erter or thevehicle m ay result if the following pointsare not observed :z Consult a work shop, such as yourVauxhall Authorised Repairer, as quic klyas possible in the event of misfiring,irregular engine running following a coldstart, a significant loss of engine poweror other unusual malfunctions whichmay indica te a fa ult in the ignitionsy stem. If necessary, d riv ing may becontinued for a short time at a low speedand with a low engine speed.Irregular engine running a nd a loss ofengine power when the Traction ControlSystem 3 or the Electronic S tabilityProgram 3 com e into action aredetermined b y the op erating conditionsand are therefore of no significance – seepages 148, 149.z If unb urnt fuel enters the c atalyticconv erter, this may result in overheatingand irreparable damage to the c atalyticconv erter.You should therefore av oidunnecessarily long use of the starterwhen setting off, running the tank dry(an erratic fuel supply leads tooverhea ting) and starting the engine bypushing or towing.1) LR P = Lead Rep la cement Petrol.