Is there a problem with my Lexus GS 350?
No one has added a helpful site for this 2013 GS 350 problem yet. Be the first! Read reviews of repair shops in your area. Enter your zip code:
What causes high idle and high engine speed?
This valve is prone to sticking. If the plunger is backed out too far, this can affect a vacuum leak, causing a high idle after the engine has warmed to operating temperature. This can also result in a pulsating/fluctuating engine speed. While most repair manuals recommend replacing this valve assembly, it can be removed and cleaned.
How often does the engine idle during a drive?
• The learned idling air flow volume remains at the maximum or minimum volume five times or more during a drive cycle. • After driving at 6.25 mph or more, the actual engine idling speed varies from the target idling speed by between 100 and 200 rpm, five times or more during a drive cycle.
What causes an engine surge during fuel injection?
In combination with the camshaft position sensor (CMP), the CKP signals are used by the ECU to manage fuel injection and spark delivery. A faulty CKP (or CKP circuit) can easily cause an intermittent misfire, which naturally results in what the driver may perceive as a surging effect.
No one has added a helpful site for this 2013 GS 350 problem yet. Be the first! Read reviews of repair shops in your area. Enter your zip code:
Why does my Lexus IS 250 not start?
It is possible that over time, the inner walls of the throttle body accumulate dirt and grime, blocking proper airflow. This is more likely to the be the case on the IS 250 due to that motor’s direct injection issues. Carbon can build up around the throttle body, causing the engine to stumble on low throttle. Remove plastic engine cover.
Why does my Lexus have sluggish throttle response?
Sluggish throttle response isn’t normal. Learn the common causes behind a loss of power in a Lexus here. This article applies to the Lexus IS, GS, ES, RX (2007-2014). The constant burning and spraying of oil and gasoline leaves deposits on the components of an engine.
What happens when engine idle speed is above programmed range?
When the engine idle speed is either above or below the programmed range, the ECU prompts the ISC to either increase or decrease bypass airflow. Naturally, as the IAC prompts the throttle plate to open, engine speed increases. The IAC features a plunger mechanism that may be stuck/sticking.