ahrrrr….it’s really annoying….after hours of testing rides and measuring I still have no idea what the grudn is for my problem…. the problem: so again….ic hbin before a week or so with heavy raindriving and driving through a bigger puddle and then he mucked briefly, as if he had pulled water or something…well.. .on all cases I noticed since then 2 things.. .. 1. he jerks very strongly, but if I close the agr it is much less, still jerking and 2nd hits even further to 2. I have a strong performance loss, but that only from middle turns, he does not want to turn at all higher and well, you can only get ahead hard, but down there he still runs through properly… what ic hmade….so I cleaned the agr, the lambda measured (was still in the tolerance range,….) the control unit (was also in the tolerance range) then the candles (had made new ones pure, but no submissive ed) and the ignition cables also all look very good as well as the ignition distributor or splice where the ignition cables go in…. so the contacts all look very good… IT’S HAPPENING TO AN OPEL ASTRA F BJ 97 WITH THE 1.6ER SZR MOTOR ic hhab absulut no anung what it is, please further helpful ideas…thanks