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Originally Posted by Toddski
My 1973 450SL has suddenly become a rough runner. Rough idle and misses a lot. In the course of trouble shooting, I discovered the air temp sensor on the horn of the air cleaner can. When disconnected, all seems fine. But reconnecting the sensor brings back the rough idle and misfire. What does this sensor do and should i just replace it?
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the air sensor will do as you say when disconnected. this engine can do
as you say with all kinds of things going on. check for bad sp plugs,
bad sp plug connectors, vac leaks, etc. might wanna check and see if
you got oil on the trigger points. most trouble shooting will start with
what is the major symptom. is the problem spark or fuel relasted??
george