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My 2008 Trailblazer has OBD-II code P2430. How do I replace the secondary air injection pump?

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This code doesn't mean to replace the air pump ,
DTC P2430 : Secondary Air Injection (AIR) System Pressure Sensor Circuit
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 relay supplies the current needed to operate the AIR control solenoid valve/pressure sensor assembly. A pressure sensor is used to monitor the air flow from the AIR pump. The engine control module (ECM) supplies the internal pressure sensor with a 5-volt reference, an electrical ground, and a signal circuit.
This is a pressure sensor problem . What this video on testing !
Chevrolet Malibu P2432 Secondary Air Injection System

Posted on May 11, 2017

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Posted on Jan 02, 2017

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1 Answer

P0411 code fault


P0411 Secondary Air Injection System Incorrect Flow Detected

www.obd-codes.com/p0411
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VW Emissions Code P0411. .... VW 1.8T Secondary Air Injection Pump Replacement for Fault Code P0411 - Duration: 8:48. by Deutsche Auto ...

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1 Answer

Find the sensor code P2430


DTC P2430 : Secondary Air Injection (AIR) System Pressure Sensor Circuit
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 relay supplies the current needed to operate the AIR control solenoid valve/pressure sensor assembly. A pressure sensor is used to monitor the air flow from the AIR pump. The engine control module (ECM) supplies the internal pressure sensor with a 5-volt reference, an electrical ground, and a signal circuit.

Sep 14, 2015 | 2008 Chevrolet Chevrolet Cobalt LT

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What is OBD code po4 18 on a 2004 Cadillac deville


P0418 Secondary Air Injection System Relay "A" Circuit Malfunction

Read more at: http://www.obd-codes.com/trouble_codes/
Copyright © OBD-Codes.com

May 22, 2015 | 2004 Cadillac Deville

1 Answer

How to clean secondary air injection incorrect upstream flow detected Code PO411


The valve may need to be replaced. Only air flows thru the components.

Jul 03, 2012 | 2008 Chevrolet TrailBlazer LT

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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

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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

1 Answer

How to fix trouble code p2430 on a 2005 pontiac grandprix?


CODE P2430 - SECONDARY AIR INJECTION AIR SYSTEM AIR FLOW PRESSURE SENSOR BANK 1 CIRCUIT MALFUNCTION.

Dec 31, 2010 | 2005 Pontiac Grand Prix

2 Answers

Secondary air injection system malfunction


CHECK AIR PUMP FUSE 25 AMP AND CHECK THE SECONDARY AIR INJECTION PUMP RELAY.IF ALL IS GOOD AIR PUMP HAS A BAD SOLENOID OR THE PUMP IS FAULTY.

Mar 01, 2010 | 2004 Chevrolet TrailBlazer

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