My friend has the following problem with her car: During the drive the car suddenly starts to jerk strongly. Is also visible that the rev indicator falls off and catches again. No indicator light works on. With luck he gets back in and runs normally. If it runs stupid the engine goes off, after a short waiting time you can start it again. In the error memory is not stored. It is about the following vehicle: SantaFe 2.4 16V, BJ 2001 with 146 HP. D he workshop has changed the following and is still at a loss: – Misignition sensor No. 2737038000 – Ignition coil No. 2730138020 In the workshop it was suspected that it could be the air mass meter No. 2816438080, but it costs accordingly. I have worried the LMM in the meantime, but the problem still exists. Has any of you had such a problem and knows where the error lies? We are now in despair about what we can still do. my friend doesn’t even dare to drive with it anymore. For your hopefully numerous and useful answers, thank you very much in advance.