A timing advance processor improves engine performance by adjusting ignition timing. It is typically installed in the original vehicle starter system, and is available for a variety of different car types. These devices can increase engine performance, reduce consumption, and reduce the risk of backfiring. They can also help maintain the optimum operating point of the ignition coil when switching from conventional gas to alternative fuel.

Timing advance processors are electronic control units that optimize engine performance when operating on LPG and CNG. Some of these units allow you to select your preferred degree of spark advance, including the idling setting. This means you can turn off spark advance when not using your vehicle, and reset it back to the original degrees when running on petrol.