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my 1983 b23e k-jet 240gl has had a rough idle for almost 6months now. i would like to say it is intermittent but i think it is more often than not. i have searched hard for a vacuum leak, with no luck. i am next going to clean the throttle body. but then i will not know how to proceed. the car runs fine when not idling and fuel delivery problem i think is not on the top of my list since both fuel pumps were replaced just over a year ago and the fuel filter has only done 20000k. i have sprayed soapy water on the injectors with no change in idle. also sprayed on intake manifold gasket, no change. plugs changed under 5000k ago. looked fine. not rich, not lean but normal.
what am i missing.
thanks,
chez
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