Carburetor for nissan | CO value HC value adjustment:
The CO value and HC value meet the standard at the same time, which means that the carburetor cannot meet the emission requirements when the conditions do not change. Limiting the CO and HC values can ensure the rationality of the adjustment. If the CO value is lowered and the HC value is too high, the combustion will be in an unreasonable state. The best adjustment method is to meet the emission standards, it is best not to use the Paris adjustment method. If the HC meets the standard, but the CO exceeds the standard, the Paris adjustment method can be used appropriately. If the CO and HC cannot meet the standard at the same time, the carburetor and ignition system need to be checked. .