Цитата: Question:
I have a 1999 Lexus GS300. I currently have a P1300 Lexus engine light code: Igniter Circuit Malfunction, Bank 1. The car rumbles and sometimes dies. What component is causing this and what most likely is the repair?
Answer:
Thanks for submitting your Lexus engine light question. The ECM (computer) uses input signals from pick-up devices (the camshaft position and crankshaft position sensors), to switch the ignition coils primary circuit on and off. The ignition coil is what sends spark to the plugs. The primary ignition circuit is turned off when the ECM delivers a signal to the IGT wire, causing the ignition coil to fire. Side note: an ignition coil fires spark when the current is interrupted and the field is broken, as such this coil fires when the ECM delivers the signal to turn off primary circuit on the IGT wire; make sense? After the computer sends this signal, it then checks to ensure the primary circuit switching has occurred by monitoring the IGF (Ignition Confirmation Signal) circuit. This Lexus engine light code is set when there is no Ignition Confirmation Signal (IGF) received at the ECM (computer) for 2 or more ignition cycles, or when the IGF signal is lost 3 or more times during 6 consecutive IGT signals with the engine running. Possible causes are: open or short circuit in the IGF or IGT circuits (including the coils and wires), faulty ignitor or faulty ECM. You can refer to our automotive circuit testing article for help with testing the wiring. The easiest way to check the ignitor system is to remove the ignition coils and spark plugs, reconnect electrical connectors on the coils, disconnect fuel injectors and install spark plugs in coils and spark plug wires. Ground out the spark plugs on the engine block. Have an assistant crank the engine (5 seconds max) and check for spark at the plugs. Do not come in contact with spark plugs, coils or any related areas as electric shock can occur! Also keep these away from fuel lines and flamable areas. If you have spark on the plug at the coil, but not on the plug on the wire, you may have a faulty wire. Check the resistance of the wire. It should be no more than 25,000 Ohms. If you have no spark on any plug, check wiring and connections on coils and ignitor. Ignitor is located on top of drivers side strut tower. If all wiring tests out okay, you may have a faulty ignitor or coil. You can check ignition coil resistance. With the suspect coil removed, check primary resistance across the terminals. This should be .33 to .52 Ohms cold. Check secondary resistance by measuring from electrical terminal to spark plug terminal. This should be 8,500 - 14,700 Ohms cold. Always have these checks done by a qualified individual, and let us know if you have any further Lexus engine light concerns. Hope this was helpful!
Mike
R.Anton писал(а): теперь бы по русски это всекак-то так.
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Пожар на складе огнетушителей собрал толпу любителей иронии
, был в нескольких сервисах, никто ничего не нашел, даже оф. дилер не помог, хотя бесплатно поменяли проводку, за это им отдельное спасибо! А проблема была в 
свечах , поставил старые и все прошло, проехл уже 1500 км.
(заказ наряд есть, гарантия 6 месяцев написано, свечи были поставлены в январе 2011 года и прошли 15000 км), стоит ли расчитывать на понимание и адекватную реакцию сервиса?
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| Все форумы » Клуб Lexus GS » Lexus GS II (1997-2004) | Правила форумов |
в соседней теме прочитал про свечи,у меня тоже новые в коробке дэнсо были,может попросить их проверить,в общем ждем диагноза
