The demeanor A33 idling regime is not steady accelerates the flameout the breakdown

The demeanor A33 idling regime is not steady accelerates the flameout the breakdown - CQF - Yahoo!ブログ

• 2009/6/18(木) 午前 6:24

The demeanor A33 idling regime is not steady accelerates the flameout the breakdown http://www.enpinfo.com/Engine/Tech/Project/200901/24747.html 风度A33 怠速不稳加速熄火的故障 怠速不稳加速熄火的故障＞The idling regime is not steady accelerates the flameout the breakdown 熄火＞Flameout A daily production demeanor A33 passenger vehicle, the user reflected that this vehicle engine idling regime is not steady, the acceleration is incapable, and the commit rushes, after sometimes accelerates, also meets the flameout. After meeting a train, the first linkage fault diagnostic equipment carries on the inspection to the engine electrically controlled system, but has not discovered the breakdown code. After the inquiry user, knew that this vehicle just had made the maintenance, after maintaining, soon presented the present breakdown. Therefore, the servicemen decided that carries on the maintenance project to this vehicle to carry on the reexamination. Considered this vehicle when replaces the spark plug easy to have the problem, once the spark plug trades wrong, will present the breakdown which this vehicle engine will display, therefore decided that will dismantle the spark plug to carry on the inspection first. After the inspection, discovered the spark plug, although is new, but is not original Che Yong, what because original Che Yong is the platinum gold spark plug, what but this vehicle uses is the ordinary spark plug, moreover the model is not right, looks like the reason to lie in this. After winning the user approval, the servicemen have replaced 1 group of original installation platinum gold spark plug. After the test run, the engine acceleration is powerful, but engine's idling regime is still unstable. Therefore the servicemen connected the fuel pressure gauge to survey the fuel system pressure, but the flowing tubing head pressure did not have the question in the normal range. This time the servicemen suspected this vehicle when carries on the maintenance celebrates a holiday passively the tire valve, therefore carries on the inspection, discovered that the damper position artificial has been adjusted. Is precisely because the engine control unit cannot distinguish the engine according to the damper position transducer's position to be in the idling regime operating mode, causes engine's idling regime to appear exceptionally. After adjusts the damper position transducer the normal position, starts the vehicles once more, the engine acceleration, the idling regime is normal, trouble shooting. This vehicle for the model man-made fault, first is a spark plug, next is cleans when the damper the damper position transducer's proportional type control mistake. As the modern dresser, after should study earnestly, services the vehicles again, do not service not the familiar vehicle blindly, in order to avoid presents the unexpected breakdown. 日产>日産 一辆日产风度A33轿车，用户反映此车发动机怠速不稳，加速无力且犯闯，有时加速后还会熄火。 接车后，首先连接故障诊断仪对发动机电控系统进行检查，但未发现故障码。经询问用户，得知此车刚刚做过保养，保养后不久就出现了目前的故障。为此，维修人员决定对该车进行过的保养项目进行复查。考虑到该车在更换火花塞时容易出现问题，一旦火花塞换错，就会出现此车发动机表现出的故障，故决定先拆下火花塞进行检查。经检查，发现火花塞虽然是新的，但并不是原车用的，因为原车用的是铂金火花塞，而该车使用的是普通火花塞，而且型号也不对，看来原因就在于此。在征得用户同意后，维修人员更换了1组原装的铂金火花塞。经试车，发动机加速有力，但发动机的怠速依然不稳定。为此维修人员又连接油压表测量了燃油系统压力，但油压在正常范围内没有问题。此时维修人员怀疑该车在进行保养时被动过节气门，于是进行检查，发现节气门位置被人为调整过。正是由于发动机控制单元不能根据节气门位置传感器的位置识别到发动机处于怠速工况，导致发动机的怠速出现?尺常。在将节气门位置传感器调整到正常位置后，再次起动车辆，发动机加速、怠速均正常，故障排除。 此车为典型的人为故障，首先是火花塞，其次是清洗节气门时将节气门位置传感器的位置调整错误。作为现代修理工，应该认真学习后再来维修车辆，不要盲目地维修不熟悉的车，以免出现意想不到的故障。

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