P0488
Exhaust Gas Recirculation Throttle Control Circuit A Range/Performance
Generic code
Auxiliary Emissions Control
Medium severity
Moderate repair
Free on OBD DashX
Want real-world data on P0488?
See which problems come with P0488, how often it shows up in other vehicles, and how to fix it — step by step.
- Real-world fix data
- How often it happens
- Step-by-step repairs
What P0488 means
- The fault code P0488 indicates that there is an issue with the circuit that controls the EGR throttle in range or performance.
Possible symptoms
- Illuminated check engine light
- Rough idle or stalling
- Reduced engine power or acceleration
- Poor fuel economy
- Engine hesitation or surging
Possible causes
- Malfunctioning EGR valve
- Wiring issues in the EGR related circuits
- Failed PCM or EGR solenoid
- Vacuum leaks in the EGR system
- Failed throttle body
Related parts
- Exhaust Gas Recirculation (EGR) Sensor: Exhaust gas recirculation (EGR) is an emissions reduction technique used in petrol and diesel engines. Problems lead to harmful emissions out of limit
Possible solutions
- Replace the EGR valve
- Check and repair damaged wiring or connections in the EGR related circuits
- Replace the PCM or EGR solenoid as necessary
- Inspect and repair any vacuum leaks in the EGR system
- Replace the throttle body if necessary
Free on OBD DashX
P0488 on OBD DashX
Real-world causes, how often this code shows up, and the fix — step by step.
Open P0488 No sign-up needed · available in 10 languagesScan your own car
Read and clear fault codes, live data and service resets with the CaRPM app.