I am interested in purchasing some type of scope or meter to analyze the engine on a w126 class car to determine which cylinder is misfiring. Also measuring duty cycle etc. Does anyone have any recommendations?

I have been looking at a used Fluke 98 scope meter. (about US$850)


Are there any other low cost digital multi-meter (DMM) with a graphing capability that you can recommend?

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1989 420 SEL