P0488 Code - Exhaust Gas Recirculation Throttle Control Circuit 'A' Range/Performance

Discussion in 'P - Powetrain Codes' started by fault code, Jan 22, 2018.

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    fault code Administrator Staff Member

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    What Does P0488 Mean?

    There are a few potential causes for the P0488 code. The most common cause is clogged DPFE sensor passages and EGR passages. You may also discover a faulty MAP sensor, EGR sensor, EGR valve, or EGR control solenoid. You might also find a broken vacuum line or faulty electrical wiring (or connectors).

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    What are the common causes of P0488 ?

    The most common causes of this code are clogged EGR passages and clogged DPFE sensor passages. You may also suspect a faulty EGR sensor, MAP sensor, faulty EGR valve, faulty EGR control solenoid, a broken vacuum line, or faulty electrical wiring (or connectors) as possible causes.

    How do you troubleshoot P0488 ?

    While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the P0488 code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.



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