After you have completed the repairs necessary to fix code P1600, it is time to reset the code. This can be done in a few different ways depending on your car’s make and model. First, check your car manual for instructions. Many car manuals include step-by-step instructions on how to reset codes after repairs are complete. If this isn’t an option, consult with a professional who can access and reset the computer system of your vehicle using special tools or software. Lastly, some people prefer to disconnect their battery cables because they believe that this will reset the codes. However, this method may not give desired results as it could lead to other complications down the road and should only be used as a last resort if all else fails. No matter which way you go, it is important to make sure that the code has been reset correctly after any repairs have been made. This will keep your car running well and safely. Don’t hesitate to get help from a professional mechanic if needed. TIP: Before attempting any engine repair work yourself, make sure you read up on the basics regarding safety procedures when working with complex machinery like engines—even if you don’t plan on doing more than just inspecting something!