Which step should be performed last when diagnosing an engine performance problem? a. Checking for any stored diagnostic trouble codes b. Checking for any technical service bulletins (TSBs) c....

Which step should be performed last when diagnosing an engine performance problem?

a. Checking for any stored diagnostic trouble codes


b. Checking for any technical service bulletins (TSBs)


c. Performing a thorough visual inspection


d. Verify the repair