|
|
Kia Sportage>> Systems of an electric equipment of the engine>> System of ignition of the petrol engine>> Checks of a control system by ignition
Checks of a control system by ignition
The general information
Components of systems of ignition/engine management are among elements of raised reliability and the majority of refusals, as a rule, appear connected with infringement of quality of contact connections, or electroconducting damage. Breakdowns ВВ of electroconducting result from pollution, humidifying or isolation damage more often. Before coming to conclusion about failure any of system elements, always first of all check a condition of corresponding electroconducting and its contact connections.
Do not make check of serviceability of giving of pressure on spark plugs by a detachment from them electroconducting and its approbation on weight of the engine, - such diagnostics, besides risk of reception of an electroshock, it is interfaced to danger of failure ECM or ignition coils. At infringement of stability of working turns of the engine also it is not necessary to try to localise malfunction by a consecutive detachment of electroconducting from spark plugs.
Listed below check allow to define the reason of the malfunctions which symptoms are obvious enough (starter refusal, ignition admissions, etc.). Some, less obvious, infringements can not show themselves at the expense of automatic transition of a control system in emergency operation of functioning and are shown only in increase of the expense of fuel, infringement of stability of turns of idling, reduction of efficiency of return of the engine, occurrence of detonations and so forth, - address for consultations to experts of car-care centre.
The engine is not started
|
|
Do not forget that a cause of a failure of start of the engine failure of an immobilizer of the antijoy ride device can be. |
|
|
Check up a condition of a safety lock of ignition (the Onboard electric equipment see the Head), in case of need make its replacement.
If the starter is not turned, or rotates the engine too slowly, first of all check up serviceability of functioning actually a starter, and also a condition of the storage battery. Connect the voltmeter to plugs of the battery and measure its target pressure at проворачивании the engine by a starter, - if the result of measurement makes less than 9.5 In, it is necessary to check up serviceability of a condition of the battery, a starter and components of system of a charge.
|
|
Do not activate a starter continuously within more than 10 seconds! |
Operating strictly according to instructions of the manufacturer, connect a stroboscope and turn the engine a starter, - activation of a lamp of a stroboscope confirms serviceability of giving ВВ of pressure on spark plugs. Check up a condition actually candles. If the stroboscope does not work, estimate condition ВВ of electroconducting (Current leaving and service see the Head).
At absence искрообразования make sure of serviceability of the coil (ек) ignitions (most easier to replace the coil obviously serviceable, - alternatively to measure resistance of windings). Do not hasten to throw out the coil suspected of refusal, - before check up quality and reliability of its contact connections.
One more cause of a failure of start of the engine infringement in the powerful buffer target cascade which is a component of the module of management of the engine (ECM), and also malfunction any of information gauges of a control system (CMP/CKP) can be, or other accompanying knot, - check up memory ECM on presence of the diagnostic codes written down in it (Power supply systems, managements of the engine/decrease of toxicity of the fulfilled gases and release of the fulfilled gases see).
|
|
Ignition admissions
|
|
Infringement of quality of contact connections of electroconducting on plugs of coils of ignition, or any of information gauges (CMP/CKP) appears the reason of admissions of ignition more often.
Switch off ignition and check up corresponding contact sockets on presence of signs of oxidation and reliability of fixing on plugs.
Estimate condition ВВ of electroconducting. Make sure that wires do not adjoin to metal parts of the engine, - if the wire with the broken isolation concerns metal at engine work искрообразование will take place not between contacts of a corresponding spark plug, and in a breakdown place. At revealing even insignificant damage of isolation at least one of wires replace all complete set.
|
|
To make sure of serviceability of condition ВВ of electroconducting is the most easier by replacement of all complete set on obviously serviceable. |
At serviceable electroconducting by the reason of admissions of ignition failure actually candles, or bobbin assemblage can be, - replace candles (Current leaving and service see the Head), check up a coil condition. One more reason of occurrence of admissions of ignition damage or pollution of the gauge of position of a cranked shaft (CKP) can be.
In summary make reading of codes DTC and clearing of memory of the module of onboard self-diagnostics (ECM).
|
|
|
|