Quote:
Originally Posted by EdWindows
Well, if you have no spark to ignite the fuel, then unplugging the injector does nothing to the engine.
When you unplug an injector on a cylinder with a working coil, the engine bogs and starts missing, so you know that's not the cylinder with the bad coil.  |
This is correct,
but if you have a weak coil/spark then the engine will miss with the fuel injector disconnected,
but can still have a bad coil.