check engine code P0412 help please!

[cgmtboarder]

my car is running a check engine code of P0412 which says its a secondary air induction system valve A malfunction. what is this?

 

[epic fail]

Secondary Air Injection (AIR) System Monitor Electric Air Pump System
The Secondary Air Injection (AIR) System Monitor is an on-board strategy designed to monitor the proper function of the secondary air system. The AIR Monitor for the Electric Air Pump system consists of two monitor circuits: an AIR circuit to diagnose problems with the primary circuit side of the Solid State Relay (SSR), and an AIR Monitor circuit to diagnose problems with the secondary circuit side of the Solid State Relay. A functional check is also performed that tests the ability of the AIR system to inject air into the exhaust. The functional check relies upon HO2S sensor feedback to determine the presence of air flow. The monitor is enabled during AIR system operation and only after certain base engine conditions are first satisfied. Input is required from the ECT, IAT, and CKP sensor, and the HO2S Monitor test must also have passed without a fault detection to enable the AIR Monitor. The AIR Monitor is also activated during on demand self-test.

The AIR circuit is normally held high through the SAIR Bypass solenoid and Solid State Relay when the output driver is off. Therefore a low AIR circuit indicates a driver is always on and a high circuit indicates an open in the PCM.
The DTC associated with this test is DTC P0412.

Diagnostic Trouble Code (DTC) P0412 indicates EAIR primary circuit malfunction.
Possible causes:
-- EAIR circuit open.
-- EAIR circuit short to power.
-- AIR bypass solenoid malfunction.
-- Solid State Relay malfunction.
-- Damaged PCM.
l Key off.
l Disconnect SSR.
l Key on, engine off.
l Measure voltage between B+ circuit at SSR vehicle harness connector and battery negative post.
l Is voltage greater than 10.5 volts?
Yes
Supplied voltage is OK, GO to «HM2».
No
GO to «HM6».

HM2 CHECK CONTINUITY OF EAIR CIRCUIT
l Key off.
l Solid State Relay disconnected.
l Disconnect AIR bypass solenoid.
l Remove Secondary Air dedicated fuse temporarily.
l Disconnect PCM. Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary.
l Install breakout box, leave PCM disconnected.
l Measure resistance between EAIR circuit at SSR vehicle harness connector and Test Pin 70 at the breakout box.
l Measure resistance between EAIR circuit at the AIR bypass vehicle harness connector and Test Pin 70 at the breakout box.
l Is resistance less than 5.0 ohms?
Yes
GO to «HM3».
No
SERVICE open EAIR circuit. REMOVE breakout box. RECONNECT all components. COMPLETE PCM Reset to clear DTCs (REFER to Section 2A, «Powertrain Control Module (PCM) Reset»). RERUN «Quick Test».

HM3 CHECK EAIR CIRCUIT FOR SHORT TO POWER AND GROUND
l Key off.
l AIR bypass solenoid disconnected.
l Solid State Relay disconnected.
l PCM disconnected, breakout box installed.
l Measure resistance between Test Pins 70 and Test Pin 51, 71, 90, 97 and 103 at the breakout box.
l Is each resistance greater than 10,000 ohms?
Yes
The EAIR harness is OK. GO to «HM4».
No
SERVICE EAIR circuit for short. REMOVE breakout box. RECONNECT all components. COMPLETE PCM Reset to clear DTCs (REFER to Section 2A, «Powertrain Control Module (PCM) Reset»). RERUN «Quick Test».

HM4 CHECK EAIR CIRCUIT FOR SHORT TO POWER AND GROUND
l Key off.
l Reconnect AIR bypass solenoid.
l Solid State Relay and PCM disconnected, breakout box installed.
l Measure resistance between Test Pin 70 and Test Pins 51, 71, 90, 97 and 103 at the breakout box.
l Is each resistance greater than 10,000 ohms?
Yes
EAIR circuit with AIR bypass solenoid OK. GO to «HM5».
No
REPLACE AIR bypass solenoid. REMOVE breakout box. RECONNECT components. COMPLETE PCM Reset to clear DTCs (REFER to Section 2A, «Powertrain Control Module (PCM) Reset»). RERUN «Quick Test».

HM5 CHECK EAIR CIRCUIT FOR SHORT TO POWER AND GROUND
l Key off.
l AIR bypass solenoid disconnected.
l Reconnect Solid State Relay.
l PCM disconnected, breakout box installed.
l Measure resistance between Test Pin 70 and Test Pins 51, 71, 90, 97 and 103 at the breakout box.
l Is each resistance greater than 10,000 ohms?
Yes
If P0411 or P1411 are also present:
GO to «HM9».
All others:
REPLACE PCM. RECONNECT all components. COMPLETE PCM Reset to clear DTCs (REFER to Section 2A, «Powertrain Control Module (PCM) Reset»). RERUN «Quick Test».
No
REPLACE Solid State Relay. REMOVE breakout box. RECONNECT components. COMPLETE PCM Reset to clear DTCs (REFER to Section 2A, «Powertrain Control Module (PCM) Reset»). RERUN «Quick Test».

HM9 CHECK FOR VACUUM AT AIRD VALVES
l Key off.
l Reconnect PCM.
l Disconnect vacuum control line from the AIRD valve(s).
l Key on, engine running.
l After a 5 second delay, vacuum will be present between 30-90 seconds.
l Is vacuum present at the AIRD valve(s)?
Yes
GO to «HM10».
No
GO to «HM30».

HM10 CHECK AIRD VALVE(S) INTEGRITY
l Key off.
l Reconnect vacuum control line.
l Disconnect air tube from AIRD valve(s) outlet side.
l Cork off the air tube to prevent exhaust gases from escaping.
l Inspect AIRD valve(s) outlets for damage from hot exhaust gases. Service as necessary. Caution must be observed while performing this test.
l Key on, engine running.
l After a 5 second delay, air will be present between 30-90 seconds.
l Is air present from the AIRD valve(s)?
Yes
GO to Shop Manuals to service the exhaust tubes from the AIRD Valve to the exhaust manifold(s). COMPLETE PCM Reset to clear DTCs (REFER to Section 2A, «Powertrain Control Module (PCM) Reset»). RERUN «Quick Test».
No
SERVICE hose from EAP to AIRD Valve. If OK, REPLACE the appropriate AIRD Valve(s). RECONNECT all components. COMPLETE PCM Reset to clear DTCs (REFER to Section 2A, «Powertrain Control Module (PCM) Reset»). RERUN «Quick Test».

HM30 CHECK VACUUM HOSE INTEGRITY
l Key off.
l Check vacuum hose between AIRB solenoid and AIRD valve.
l Check for blockage and restrictions.
l Check for leaks and cracks.
l Check for kinks or disconnects.
l Are the above checks OK?
Yes
GO to «HM31».
No
REPLACE the vacuum line connecting the AIR bypass solenoid to AIRD valve(s). COMPLETE PCM Reset to clear DTCs (REFER to Section 2A, «Powertrain Control Module (PCM) Reset»). RERUN «Quick Test».

HM31 CHECK AIR BYPASS SOLENOID ELECTRICAL OPERATION
l Key on, engine off.
l Connect Scan Tool.
l Enter Output Test Mode (OTM). Refer to «Section 2A», Diagnostic Methods.
l Disconnect AIR bypass solenoid.
l Connect DVOM to AIR bypass solenoid vehicle harness connector.
l Turn the outputs on, then turn outputs off while observing DVOM.
l Does EAIR circuit voltage cycle greater than .5 volt?
Yes
REMAIN in Output Test Mode. GO to «HM32».
No
GO to «HM33».

HM33 CHECK AIR BYPASS SOLENOID RESISTANCE
l Key off.
l Disconnect AIR bypass solenoid vehicle harness connector.
l Measure AIR bypass solenoid resistance.
l Is resistance between 50-100 ohms?
Yes
GO to «HM34»,
No
REPLACE AIR bypass solenoid. RECONNECT all components. COMPLETE PCM Reset to clear DTCs (REFER to Section 2A, «Powertrain Control Module (PCM) Reset»). RERUN «Quick Test».

HM34 CHECK VPWR CIRCUIT VOLTAGE
l Key on, engine off.
l AIR bypass solenoid disconnected.
l Measure voltage between VPWR at the AIR bypass solenoid vehicle harness connector and battery ground.
l Is voltage greater than 10.5 volts?
Yes
GO to «HM35».
No
SERVICE open VPWR circuit. RECONNECT AIR bypass. COMPLETE PCM Reset to clear DTCs (REFER to Section 2A, «Powertrain Control Module (PCM) Reset»). RERUN «Quick Test».

HM35 CHECK CONTINUITY OF EAIR CIRCUIT
l Key off.
l AIR bypass solenoid disconnected.
l Disconnect Solid State Relay.
l Install breakout box, leave PCM disconnected.
l Measure resistance between Test Pin 70 at the breakout box and EAIR circuit at the AIR solenoid bypass vehicle harness connector and at the Solid State Relay vehicle harness connector.
l Is resistance less than 5.0 ohms?
Yes
GO to «HM36».
No
SERVICE open EAIR circuit. RECONNECT components. COMPLETE PCM Reset to clear DTCs (REFER to Section 2A, «Powertrain Control Module (PCM) Reset»). RERUN «Quick Test».

HM36 CHECK EAIR CIRCUIT FOR SHORT TO GROUND
l Key off.
l AIR bypass solenoid disconnected.
l Solid State Relay disconnected.
l Breakout box installed, PCM disconnected.
l Disconnect Scan Tool.
l Measure resistance between Test Pin 70 and Test Pins 51, 76 and 91 at the breakout box.
l Is each resistance greater than 10,000 ohms?
Yes
GO to «HM37».
No
SERVICE short to ground. RECONNECT components. COMPLETE PCM Reset to clear DTCs (REFER to Section 2A, «Powertrain Control Module (PCM) Reset»). RERUN «Quick Test».

HM37 CHECK EAIR CIRCUIT FOR SHORT TO POWER
l Key off.
l AIR bypass solenoid disconnected.
l Solid State Relay disconnected.
l Breakout box installed, PCM disconnected.
l Measure resistance between Test Pin 70 and Test Pins 71 and 97 at the breakout box.
l Is each resistance greater than 10,000 ohms?
Yes
REPLACE PCM. RECONNECT components. COMPLETE PCM Reset to clear DTCs (REFER to Section 2A, «Powertrain Control Module (PCM) Reset»). RERUN «Quick Test».
No
SERVICE short to power. RECONNECT components. COMPLETE PCM Reset to clear DTCs (REFER to Section 2A, «Powertrain Control Module (PCM) Reset»). RERUN «Quick Test».




Hope that helps some

 

[cgmtboarder]

what do i have to do to get rid of the EGR system completely?

 

[epic fail]

from googling just now looks like just an egr block off plate, and on the canister they're talking about leaving the vac line venting

 

[95GSSleeper]

I have the Secondary air injection valve a malnfunction situation how can i fix this i dont know that much about cars but this dam check engine light is on my last nerve please help

 

[cgmtboarder]

ok heres how you fix that code. unplug the plug that goes into the egr valve by the bottom of the intake. there will be a plug and a vacuum line connected. take the plug off and get a resistor of 5 or equal to 5. i did a 2 resistor and 3 resistor and put them together. then put on end of the resistor in one side of the plug and the other side of the resistor and put it in the other side of the plug then tape it to ensure it stays. and your done

 

[skittlezfersur]

did this help any of u i get that as well on my 95 eclipse rs manual
i thought it was a sensor or anything else i replaced everything in my engine bay i got the code with an obd2 and was extremely pissed cuz my car runs for 10 min and then high revs and turns off