well , i know it is a very long time since i've posted anything but .................whatever.
Anyhow , regarding the check up DTC's i had back then :
00537 : Lambda (Oxygen Sensor) Regulation: Upper Limit (Intermittent)
00533 : Idle Speed Regulation: Adaptation Limit below limit (Permanent)
00561 : Mixture Adaptation: Adaptation Limit (Add) Exceeded (Permanent)
00513 : Engine Speed Sensor (G28): No Signal (Permanent)
i had erased the codes back then but the issue of course remained.
the next step was to change s