okkyputra

I have a problem in my W202 C180, the rpm is sometimes unstable when the engine is hot, and when I do a scan an error code appears 048 "resistance trimming plug R16/5" is this a weakness in the crankshaft sensor? because when I press the crankshaft sensor socket on the ECU/PMS, the engine rpm can be good. For the record, all spark plug wires, spark plugs, coils and throttle valves have been replaced