what is spark timing adjust signal

1 thought on “P1300”

  1. P1300 Random Misfire (Acura)

    what is the year, make and model of the car you have this code for?

    The PCM receives reference signals from the crankshaft position sensor. The PCM also uses MAP and TP to calculate the spark output signal. The spark output signal controls the timing of the primary of the ignition coils. The PCM also provides spark retard when knock conditions are detected by a knock sensor mounted in the engine block.

    The electronic ignition module accepts ignition timing information from the PCM. It charges up the appropriate ignition coil to a preset current limit then turns off the primary current at the desired engine position to create a high voltage signal that is routed to the spark plug to ignite the air/fuel mixture.

Comments are closed.