P1588 Buick 40 OBD Code

OBD/2 P1588 error code description and symptoms.

Output Shaft Speed sensor circuit intermittent failure The output shaft speed sensor signal to the PCM is irregular or interrupted.
Harness connector not properly seated Harness intermittently shorted, or open Harness connector damaged OSS sensor damaged, or not installed properly Verify harness and connector integrity Verify OSS sensor proper installation.

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

P1588 Buick 40 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P1588 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If p1588 throttle control unit detected loss of return spring so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the p1588 throttle control unit detected loss of return spring.

Common Causes of Buick 40 P1588 OBD2 Code

A common cause of code P1588 is the failure of P1588 Throttle Control Unit Detected Loss of Return Spring, but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
Clogged or faulty fuel injector (s)
Damaged ECM
Open or short in the VCT circuit

P1588 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P1588 Buick 40 OBD Code

P1588 Buick 40 Error Code Repair Process :

Common Causes of Buick 40 P1588 OBD2 Code

P1588 code for other Buick cars