Does it read high or low? If its low push the needle with the car off so it looks like the rpms are climbing after awhile it'll stop moving from there push the amount you need to raise it I only needed to push mine like half an inch after it stopped moving when I did mine. If its reading to high rotate it counter clockwise until it stops and move it the distance you need to. It's pretty trial and error but it's very easy
^^ If that doesn't work pick one up from a junkyard. Note: a dealer will have to enter the correct amount if mileage if you are worried about that. So, take note of your mileage before you remove. Yes, the mileage is stored in the cluster.