Ensure all wires are fully repaired and insulated, especially around the #4 injector wiring. It’s crucial that there are no exposed or damaged wires that could cause intermittent shorts or grounds.
Since you used liquid tape, make sure it has fully cured and isn't causing any unintended shorts or issues. It's important to use a good quality electrical tape or heat shrink tubing to ensure a solid repair.
If you're getting new codes related to different components (such as the O2 sensor, MAP sensor, or injectors), note the exact codes and see if they point to specific components or circuits that may still have wiring issues. Pay attention to things like vacuum leaks, which can also cause sensor malfunctions and poor performance. Even small leaks can affect engine performance and trigger codes.
