1978 datsun 280z

My Z car (standard 4 speed ) doesn’t idle down when at a stop sign, and occasionally the engine revs to 3000 RPMs when sitting at a stop sign, any suggestions?


1 thought on “1978 datsun 280z”

  1. The most common cause for this issue would be vacuum leak. You will need to look closely at all your engines vacuum lines and hoses for a crack or hole. Replace them as needed.

    A trick I use to help locate vacuum leaks is to spray brake wash around the hoses with the engine running and listen for a change in the engine.

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