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11/03/2021 12:22 pm
Topic starter
05 Pontiac Grand Am
Hey scotty, I have noticed my car idles around 525, 550 on the tachometer. I recently bought the Autool heads up display that plugs into obd2 port from one of your videos. On their is says 650-700 which one is right?
1 Answer
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11/03/2021 3:22 pm
Trust the OBD tool.
Your tachometer is faulty.
