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What does code P0411, P2440 mean - 2009 GMC Envoy

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P0411 code fault


P0411 Secondary Air Injection System Incorrect Flow Detected

www.obd-codes.com/p0411
Detailed information on troubleshooting and repairing a P0411 DTC code which has to do with the secondary air ... OBD-II Trouble Code Technical Description.

VW Emissions Code P0411. How to fix it, Quick and Easy ...

? 2:42
https://www.youtube.com/watch?v=x2ul9mbEFZM
Oct 1, 2012 - Uploaded by Keelan Hawkins
VW Emissions Code P0411. .... VW 1.8T Secondary Air Injection Pump Replacement for Fault Code P0411 - Duration: 8:48. by Deutsche Auto ...

Nov 13, 2015 | Cars & Trucks

1 Answer

What does the codes mean po1296 po411 po304


The first fault code do you mean p1296 if so that is a cooling system malfunction you will need to check the temperature sensor.

The fault code p0411 is a Secondary Air Injection System Incorrect Flow Detected

And the p0304 fault code is a misfire detected on cylinder 4 possibly a coil pack maybe a plug

Apr 15, 2015 | Cars & Trucks

1 Answer

What does a p0411 code mean?


That code means. Secondary Air Injection System Incorrect Flow.

Feb 24, 2015 | 2009 Chevrolet Chevrolet Impala LT

1 Answer

P0411 code on 1999 jetta


The fault code P0411 means "Secondary Air Injection System Incorrect Flow Detected"
autocom cdp plus

Jul 24, 2012 | 1999 Volkswagen Jetta

2 Answers

HELP ME WITH THESE CODES!!


What engine ? 3.8 or 5.3 L
DTC P0128: Engine Coolant Temperature (ECT) Below Thermostat Regulations Temperature

DTC P0411 : Secondary Air Injection (AIR) System Incorrect Air Flow Detected

DTC P2440 : Secondary Air Injection (AIR) Valve Stuck Open

DTC P2431 : Secondary Air Injection (AIR) System Pressure Sensor Performance
Circuit/System Description
The secondary air injection (AIR) system aids in the reduction of hydrocarbon emissions during a cold start. The system forces fresh filtered air into the exhaust stream in order to accelerate the catalyst operation. An electric air pump, the secondary AIR injection pump, provides filtered air on demand to the AIR control solenoid valve/pressure sensor assembly. The AIR control solenoid valve/pressure sensor assembly controls the flow of air from the AIR pump to the exhaust manifold. The AIR solenoid valve relay supplies the current needed to operate the AIR solenoid valve/pressure sensor assembly. A pressure sensor is used to monitor the air flow from the AIR pump. The powertrain control module (PCM) supplies the internal pressure sensor with a 5-volt reference, an electrical ground, and a signal circuit.
The AIR diagnostic uses 3 phases to test the AIR system:
DTCs P0411 and P2430 run during Phase 1
DTCs P2430 and P2440 run during Phase 2
DTC P2444 runs during Phase 3
During phase 1, both the AIR pump and the solenoid valve are activated. Normal secondary air function occurs. Expected system pressure is 8-10 kPa above BARO.
During phase 2, only the AIR pump is activated. The solenoid valve is closed. Pressure sensor performance and solenoid valve deactivation are tested. Expected system pressure is 15-20 kPa above BARO.
During phase 3, neither the AIR pump nor the solenoid valve is activated. AIR pump deactivation is tested. Expected system pressure equals BARO.
In all 3 phases, testing is accomplished by comparing the measured pressure against the expected pressure. The PCM can detect faults in the AIR pump, AIR solenoid valve/pressure sensor assembly, and the exhaust check valve. The pressure sensor can also detect leaks and restrictions in the secondary AIR system plumbing.

Chevrolet Malibu P2432 Secondary Air Injection System

Jan 29, 2018 | 2006 Pontiac Grand Prix

2 Answers

Grand Prix pontiac error code p0411 and p2440


P2440 refers to the Secondary Air Injection system. It means that the switching valve is stuck open. We already replaced the secondary air flow pump, now it's telling us that's its the secondary air flow sensor and the valve is stuck open. the code is coming up P2440

Oct 15, 2011 | 2006 Pontiac Grand Prix

1 Answer

How to fix P2430 code on a 2006 Pontiac Grand Prix


P2430 Secondary Air Injection System Air Flow/Pressure Sensor Circuit,
The AIR diagnostic uses 3 phases to test the AIR system:

DTCs P0411 and P2430 run during Phase 1
DTCs P2430 and P2440 run during Phase 2
DTC P2444 runs during Phase 3
During phase 2, only the AIR pump is activated. The solenoid valve is closed, this is p2430 and p2440. -The AIR system pressure sensor is stuck. good-day !!

Jul 15, 2011 | 2006 Pontiac Grand Prix

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