You have 3 options. 1) Repair (it may easily cost you $3 - 4k and need to order it's components from oversea) 2) Sell / scrap your CNG car and you can only take back very little money. 3) Uninstall the CNG system in your car and you can drive to its full 10 years. After that, you may choose to extend another 5 or 10 years if your car is still in good running condition. We will provide experience CNG technicians to dismantle and uninstall the CNG system in your car. • Labout to uninstall CNG system - $700 • Price include labour to dismantle all CNG components • Price include labour to remove CNG tank. • price include all documents submission. • Same day register and dismantle, can be arranged.