|
|
dual spark plugs at the #6 cylinder as coil #6 also fires a “wasted spark” to one of the dual spark plugs at the #6 The firing order is paired at cylinders 1/6, 2/3, 4/7, 5/8. Basic cylinder firing order is 1–8–4–3–6–5–7–2. Battery voltage is supplied to all of the ignition coils positive terminals from the ASD relay. If the PCM does not see Base ignition timing is not adjustable on the 5.7L V-8 engine. By controlling the coil ground circuits, the PCM is The PCM adjusts ignition timing based on inputs it receives from: • The engine coolant temperature sensor • The crankshaft position sensor (engine speed) • The camshaft position sensor (crankshaft position) • The manifold absolute pressure (MAP) sensor • The throttle position sensor • Transmission gear selection REMOVAL REMOVAL 3.7L V-6 An individual ignition coil (2) is used for each spark 1. Depending on which coil is being removed, the throttle body air intake tube or intake box may 8I - 26 IGNITION CONTROL - SERVICE INFORMATION DR/DH |