How does idle speed work on a GMC p0507?
How does idle speed work on a GMC p0507?
The stepper motor drives a valve pintle which protrudes into a passage that bypasses the throttle plates. The PCM commands the Idle Air Control Valve pintle to extend to decrease the idle speed. The bypass air flow is reduced and the idle speed decreases as the pintle approaches its seat.
Why does my car have a p0507 code?
The most common reason that sets off a P0507 code is not actually a problem with the idle speed control system, but rather an engine vacuum leak.
What does the OBD code p0509 mean?
This OBD-II code belongs to a series of fault codes (P0505 to P0509) that pertain to a fault in the idle control system, and it means that the engine computer has detected that the engine idle speed has exceeded the manufacturer’s pre-programmed specifications for a certain amount of time.
What is the idle air control valve on a Chevy?
P0507 CHEVROLET Meaning. The Idle Air Control (IAC) valve is a Powertrain Control Module (PCM) controlled stepper motor located on the throttle body. The stepper motor drives a valve pintle which protrudes into a passage that bypasses the throttle plates.
When is the p0507 idle air control system higher than expected?
In this case, the P0507 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is greater than the desired (pre-programmed) RPM.
When to use the p0507 code on your car?
The P0507 code is triggered when the Engine Control Module ( ECM) detects that the engine is idling higher than the specified idle rpm range. The standard engine idle is usually between 600-800rpm based on the model of the vehicle.
How long does it take to diagnose a p0507 Chevy?
The idle may be unstable or a DTC may set if the throttle position is not learned. The cost of diagnosing the P0507 CHEVROLET code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.
P0507 CHEVROLET Meaning. The Idle Air Control (IAC) valve is a Powertrain Control Module (PCM) controlled stepper motor located on the throttle body. The stepper motor drives a valve pintle which protrudes into a passage that bypasses the throttle plates.
