DTC P0300 Engine Misfire Detected

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    Circuit Description

    The PCM has the ability to detect a misfire by monitoring the 3X reference and camshaft position input signals from the Ignition Control Module. The PCM monitors crankshaft speed variations (reference period differences) to determine if a...

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    Service Manual Table of Contents

    Document Tags

    Document Title: DTC P0300 Engine Misfire Detected

    circuit

    misfire

    ignition

    control

    module

    determine

    occurring

    cylinder

    levels

    revolution

    test

    sample

    consecutive

    detected

    large

    damage

    catalyst

    flash

    vehicle

    sensor

    engine

    system

    throttle

    indicating

    action

    operation

    present

    freeze

    frame

    records

    data

    diagnostic

    history

    clear

    using

    scan

    tool

    aids

    misfiring

    currently

    stored

    hist

    value

    each

    counter

    isolated

    pair

    random

    largest

    check

    following

    secondary

    disconnected

    excessive

    resistance

    measure

    damaged

    faulty

    coil

    cracks

    carbon

    tracking

    replace

    ensure

    connections

    mass

    flow

    lean

    condition

    with

    replacement

    vacuum

    leaks

    intake

    valve

    fuel

    pressure

    will

    injector

    leaking

    exhaust

    idle

    deposits

    oxygen

    indicated

    review

    occurs

    display

    counts

    increment

    when

    start

    associated

    steps

    connector

    install

    powertrain

    operate

    duplicate

    defined

    monitor

    visually

    physically

    inspect

    problem

    found

    repair

    proper

    ground

    electrical

    diagnosis

    remove

    pintle

    spark

    plug

    wire

    necessary

    mechanical

    transaxle

    complete

    misfire detected

    engine misfire

    conditions present

    diagnostic aids

    misfire history

    misfire hist

    ignition wires

    faulty ignition

    ignition coil

    secondary resistance

    replace ignition

    fuel system

    system pressure

    pressure test

    fuel injector

    steps check

    cylinder misfire

    module replacement

    frame data

    operate vehicle

    vehicle duplicate

    duplicate conditions

    present when

    defined freeze

    monitor scan

    tool misfire

    display each

    display increment

    increment cylinder

    indicating misfire

    misfire currently

    currently occurring

    repair problem

    inspect ignition

    system problem

    spark plug

    ignition wire

    cylinders indicated

    indicated misfiring

    found replace

    ignition system

    engine mechanical

    action complete

    levels exceed mandated

    counters misfire hist

    faulty ignition coil

    coil secondary resistance

    ignition coil ignition

    sensor mass airflow

    mass airflow sensor

    airflow sensor replacement

    fuel system pressure

    system pressure test

    fuel injector solenoid

    injector solenoid coil

    solenoid coil test

    heated oxygen sensors

    steps check conditions

    powertrain control module

    control module replacement

    module replacement programming

    powertrain board diagnostic

    start idle engine

    freeze frame data

    operate vehicle duplicate

    vehicle duplicate conditions

    duplicate conditions present

    conditions present when

    defined freeze frame

    monitor scan tool

    scan tool misfire

    display increment cylinder

    indicating misfire currently

    misfire currently occurring

    found repair problem

    repair problem found

    found repair repair

    repair repair procedures

    repair procedures electrical

    diagnosis problem found

    physically inspect ignition

    inspect ignition wires

    ignition wires associated

    secondary wiring ignition

    system problem found

    remove visually physically

    associated cylinders indicated

    cylinders indicated misfiring

    problem found replace

    found replace faulty

    spark plugs ignition

    plugs ignition system

    visually inspect spark

    inspect spark plug

    spark plug visual

    plug visual diagnosis