Help who can help us drive a Hyundai XG 350 which has been a gas system from Zavolie for 3 years the jerking and twitching one might think that while driving the engine flies out the gas filters have already been changed and it has already been cleaned it lights up everyone if now the engine check lamp and shows when reading 3 and 4 cylinders misignition my dealer thinks they prefer to drive their car with gasoline on. That’s now already the second gas car we have had already had a Hyundai Santa Fe with the same problem it was but a natural gas car the workshop has changed in lots of parts that cost us about 3000 € but the error was not fixed until we had a motor damage we don’t want to go through it again but say that it has always been installed by the Hyundai dealers now is the Hyundai dealer once again the opinion we should say the spark plugs and the ignition coil change for it we should pay over 700 € already, but I also have to say it is only in the gas operation we have almost 200 hp and we will only be able to say some of the old pants of the model is never again.