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Relative Compression Test with a DSO (Digital Storage Oscilloscope)

Scott Manager California Posted Edited

Resource

Driveability

Propulsion

Relative Compression Test

How-to video demonstration on performing a relative compression test using a digital storage oscilloscope (DSO) This method of testing can quickly provide a diagnostic technician direction when performing research on a vehicle with a driveability complaint such as a misfire, DTC, or other engine performance deficiency.