Can a vacuum leak cause a high idle?
Vacuum Leak: On any engine, a vacuum leak will cause a high engine idle as the oxygen sensor detects lean operation and the engine computer then tries to compensate, which can result in abnormal idle. Malfunctioning Throttle: A malfunctioning throttle system can cause both a high or low idle as well as an engine stall.
When does the idle control system code p0507 occur?
The P0507 trouble code is being triggered when the idle control system RPM is Higher than expected. All modern engines do have a desired idle rpm, usually between 600-1000 rpm.
What is the idle control system RPM code?
The P0507 code is a common code for vehicles equipped with an electronic throttle body. Newer vehicles do normally use an electronic throttle body.
What’s the desired idle speed of an engine?
All modern engines have a desired idle speed, normally between 600 and 1000 RPM. The control unit uses active monitoring and adjustment of the throttle body to achieve these speeds.
Why does my DTC p0507 have idle speed control?
Depending on year, make, and model, DTC P0507 may have number of causes. Here are some of the most common. ECU Update – Newer vehicles, particularly those with drive-by-wire electronically-controlled throttle bodies, may not be equipped with an individual IAC, but use the main throttle valve to maintain idle speed.
What does code p0507 mean on IAC system?
If you are having a problem with the IAC system, and the MIL is on, you may also notice the engine idling unusually high, or erratically idling high and low. You may also experience hard engine starting. How do you troubleshoot code P0507 ?
What causes an idle speed control system problem?
The following idle control system problems would most-likely be accompanied by fuel system lean codes, which should help in narrowing down your diagnosis. Vacuum Leak – Over time, rubber hoses tend to become brittle, especially in the heat of the engine compartment.
What happens when idle speed is higher than expected?
If the ECU detects a problem in the system, such as engine idle speed being higher or lower than expected for the IAC opening, it will set a DTC (diagnostic trouble code) and illuminate the MIL or CEL (malfunction indicator lamp or check-engine light).