What is commonly the result of a faulty ignition points system?

A faulty ignition points system typically leads to various engine performance issues due to the critical role ignition points play in generating the spark needed for combustion. The ignition points in a traditional ignition system open and close to control the electrical current flow to the ignition coil, which transforms the low voltage from the battery into a high voltage needed to create a spark at the spark plugs.

When the ignition points are faulty, it can impede the function of the condenser, which is designed to smooth out the electrical arc when the points open and close. A non-functional or faulty condenser can cause the points to wear out faster, lead to misfires, and create irregular engine performance. Thus, the failure of the ignition points system directly relates to issues in the condenser, making this the most accurate choice.

Other options, while they can impact engine performance, do not directly result from a faulty ignition points system. A weak battery could be an issue but is not a direct consequence, and neither a clogged fuel filter nor worn spark plugs can be traced back to the state of the ignition points itself. Hence, the focus on the faulty condenser accurately reflects the direct relationship to the fault in the ignition points system.