P2141 to P2145, P2169 to P2171, P2413, P2425 to P2427 and P0490: EGR throttle, vents, cooler valve and EGR system
The throttle that helps draw exhaust gas back into the intake, the EGR vent or the exhaust pressure regulator vent solenoid has a circuit fault, the EGR cooler bypass valve has a fault, the EGR control circuit reads high (P0490), or the EGR system as a whole is not performing (P2413).
SeverityModerateUsually not urgent today, but it can get worse if left.
Can you keep driving?Drive gently, check it soonWhat does P2141 mean?
On many diesels, recirculating enough exhaust needs help: a throttle in the intake creates a slight vacuum that draws exhaust gas in, a cooler lowers the gas temperature, and a bypass valve skips the cooler when the engine is cold. Vents release the vacuum that operates some of these valves. When one of them cannot be controlled, the computer usually stops recirculating, which raises emissions and can reduce power.
What causes P2141?
- A diesel intake throttle stuck with soot
- A failed vent solenoid or a split vacuum hose
- An EGR cooler bypass valve stuck, or a cooler clogged with soot
- A damaged wire or connector near the hot engine
- A failed EGR valve, for the system performance code
What to check first for P2141
- Have the intake throttle and EGR valves commanded with a scan tool to check they move
- Inspect the vacuum hoses and vent solenoids for splits
- Look for soot buildup in the intake throttle and EGR passages
- Read the EGR flow and position codes stored at the same time
Can you drive with P2141?
You can usually drive to a workshop. Expect higher emissions and possibly less power; if the engine smokes heavily or loses a lot of power, keep the trip short.
Since May 2018 an engine warning light that stays on is a major defect at the MOT, so the car fails until the fault is fixed.
Codes on this page
13
- P0490Exhaust Gas Recirculation Control Circuit High
- P2141Exhaust Gas Recirculation Throttle Control Circuit Low
- P2142Exhaust Gas Recirculation Throttle Control Circuit High
- P2143Exhaust Gas Recirculation Vent Control Circuit/Open
- P2144Exhaust Gas Recirculation Vent Control Circuit Low
- P2145Exhaust Gas Recirculation Vent Control Circuit High
- P2169Exhaust Pressure Regulator Vent Solenoid Control Circuit/Open
- P2170Exhaust Pressure Regulator Vent Solenoid Control Circuit Low
- P2171Exhaust Pressure Regulator Vent Solenoid Control Circuit High
- P2413Exhaust Gas Recirculation System Performance
- P2425Exhaust Gas Recirculation Cooling Valve Control Circuit/Open
- P2426Exhaust Gas Recirculation Cooling Valve Control Circuit Low
- P2427Exhaust Gas Recirculation Cooling Valve Control Circuit High
Related codes
Checked on · Rafael Soares
These are the generic meanings every manufacturer shares. Each brand adds its own detail, so your car's handbook, its service information and a qualified mechanic have the last word. OdoKeep has no connection with any manufacturer, and the app does not read codes from the car.
