Modern automobile engines go farther and farther on electric road, before the advent of completely new energy era, the future of the internal combustion engine will be more emphasis on precise control of electronic equipment, in order to squeeze out more power. Many car owners, especially after more than three years of travel have been Paul, some vehicles will encounter often prompts safety warning power decline, many consumers to check many times, but because the electronic control maintenance inconvenience, even by an external computer it is difficult to find the problem. Power down when the vehicle is usually reflected in a sudden drop in the speed high speed, and acceleration of the vehicle is not linear, limited to a certain speed, etc., these are usually because the engine electronic control equipment damage or mechanical damage, here we come to take stock of what can cause the vehicle tips power down several situations.
the ECU fault
car market prompted a loss of power, a lot of maintenance organizations will spearhead the first is likely to be ecu, you first need to rule out whether it is due to misjudgment ecu software layer causing the vehicle mistaken engine power not see a problem, automatically go into protection mode, the speed limit, which is a lot of new cars did not take long to open display power down, but also do not check one reason for the problem lies, the general refresh ecu to solve this problem.
Next ecu to the power drop caused problems because there may be hardware itself ecu damage occurs, leading to ignition engine fuel injection system disorder, resulting in engine power decreased, in general, as a control apparatus for an engine ecu its reliability is particularly important, not easily damaged, but do not preclude the maintenance because of the collision, and the input-output power supply circuit fault failure caused dust working environment temperature extremes, as well as storage damaged storage hardware layer software layer caused these phenomena consumers can request a free replacement ecu 4s shop and refresh the system. If the problem occurs ecu as a new car, consumers must be clear that the emergence of a new car is a problem in the maintenance records 4s shop, the post-modification occurs not because of the ecu problem, otherwise it will affect the future of car used car sale price [123 cause]
oxygen sensor failure
cause the engine to power down, the oxygen transferSensor is the most commonly occurring problem, which is most easily solved oxygen sensor interfaces copper corrosion is bad, after replacement can be the perfect solution. However, under normal circumstances the oxygen sensor problems belong to hardware damage.
of the oxygen sensor feedback mechanism belonging to the electronic fuel injection system, is responsible for collecting the oxygen content in the exhaust system, the fuel injection amount and the air-fuel ratio is corrected, it can be said a direct impact on the dynamic performance of the engine. The oxygen sensor is damaged usually because of high temperature and pressure environment, the overall damage is encountered outside the external force, resulting in failure of the oxygen sensor, in addition to replacement of the oxygen sensor is relatively cumbersome, requiring replacement open exhaust system, and then ecu pairing, relatively long working hours. If consumers find the car idling occurs when the daily driving shake large and prompting the acceleration of poor power down, and that there may be a faulty oxygen sensor.
The spark plug failure
While it is popular electronic ignition system, the ignition system the spark plug open more simplified but always exist. The spark plug ignites the mixed gas introduced into the cylinder through the high-voltage current, once the spark plug failure will result in the wrong ignition timing of the engine cylinder even missing phenomenon. General spark plug replacement cost is less than other failures to maintenance costs caused.
carbon
Since it is now a lot of urban users have criticized the phenomenon, first of all because the coke itself in the process engine running inevitably generates, especially for poor fuel quality urban users more serious. As coke engine combustion products accumulate in the engine cylinder, gasoline also make adsorb more since the thickness of the growing, slowly it will seriously affect the operation of the engine fuel injection system, the impact of the effect of fuel atomization , engine efficiency decreases, mainly for high-speed engine performance to accelerate bad, severe body shake at idle.
once the owner found the car appeared coke case, be sure to clean up promptly, because of the natural properties of carbon lipophilic, will absorb more unburned gasoline, increasing the thickness of carbon deposition.
missing cylinder
is also one of the engine cylinders lack of engine power decrease culprit because more engine cylinders lack generally mainly caused by a single cylinder engine ignition system unignited work, and some mechanical damage properties resulting in a single cylinder automobile engine combustion can not work properly, consumers lack the cylinder can be very clearly feel, dynamic performance car engine position throughout the severe shake, shake and generally transverse, a serious decline in power, slow speed upgrade.
Gas atomization failure
For some of the car engine, especially a power cylinder direct injection engine decreases, mainly due to discharge gasoline spray oil installations caused by incomplete or insufficient fuel injection pressure results in vehicle fuel and air mixing can not be good, and thus can not control the stability of the air-fuel ratio, resulting in uneven burning, but also cause serious engine damage hardware.
Paul repeatedly during engine power failure, how would you do
vehicles during the warranty period, especially some of the quasi car engine power system problem occurs repeatedly, whether consumers every reason to demand a new car to replace it, in accordance with national regulations promulgated consumers Warranty Act, and other core components for engine damage repair split over the number of state regulations should be in accordance with the requirements of the consumers vehicle replacement, or refund. So for 4s shop for vehicles sold rebate does not change the terms of the King is to report directly to consumers and legitimate rights.
car problems, for every car owners are surly affect the quality of life of travel, so for a vehicle quickly troubleshoot faults can reduce the loss of consumers to some extent.