I have been driving a Mazda 626 GF 1.8 l 90 hp Bj 99 (before Facelift) for a few weeks, with proven only 106 tkm, reasonably maintained. Now the engine sometimes runs out. I have no idea why, maybe someone can give a hint, because no other thread exactly pastes. But in detail: The engine always runs out on the first kilometer, i.e. in the first 5 minutes. The error is not reproducible, it happens only about every 5th drive. It happens both in idle (in standing position) The engine starts again and again immediately, when driving in partial load / when accelerating, you can only notice it as a short but violent jerking, after which it runs normally. There are no other symptoms (neither bad jump-on, nor restless idle, nor swallowing, jerking or similar). I think it is due to a component of the motor electrics. A reading of the error memory at Mazda has only one error in the I have already repaired the immobilizer, but there were two cold soldering points in the control unit which had led to a bad jump. According to ecu, the ECUs repair, the WFS control unit has only one influence when starting, after which it can be theoretically disconnected, i.e. it cannot be involved in a dropout during the ride, i.e. the error is not stored in the error memory. On the basis of the read threads I type on the Hall Sensor or the ignition distributor, a defective one on the ignition lock I think is unlikely, why should it always occur in the first 5 minutes. And still, I don’t know if it has a relevance: first of all, the TCS light is always on when the engine goes out. And if the going out happens during the ride, the immobilizer always registers after going out / jerking without turning the ignition key: light on, light off, as is the case with normal starting. Thank you for tips.