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I have A PO418 code comming up in A passat I just changed the engine less tan 3 hrs ago while reading some posts it seems this the secondary air injection but im not clear on if this is the code for A fuses relay or acutalyy A sensor where do I look

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No power

Posted on Jan 17, 2013

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: vw passat 2000 1.8t front wheel drive

please rate me solved...thanks

DTC P0411/16795: SECONDARY AIR SYSTEM - INCORRECT FLOW DETECTED
Test Requirements
Ensure all fuses are okay, battery voltage is at least 11.5 volts, all electrical accessories are off, A/C is off.
Ensure engine is mechanically sound.
Test Procedure

NOTE
Secondary air system is activated by ECM and blows air into exhaust pipe
upstream of catalytic converter for 100 seconds during a cold start, 41-91°F (5-
33°C). Engine must be cold to perform following test procedure.

1. Ensure fuse and secondary fuse (secondary fuse is 40 amp and is located in fuse holder on top of battery)
are okay. Check hoses and components of Secondary Air Injection System, for damage, loose fit and
improper installation, check vacuum hoses for Secondary Air Injection System. Repair as necessary.
Erase DTC memory. Verify repair. If DTC does not reset, test is complete. Perform ECM relearn
procedure. See TEST DRIVE RELEARN PROCEDURE .
2. Remove engine cover. Disconnect pressure hose from Secondary Air Pump Motor (V101), by pressing
buttons on hose connector. See Fig. 33 . Using scan tool, check Secondary Air Pump Motor (V101) in
scan tool Output Diagnostic Test Mode (Secondary Air Pump Relay activation mode). See OUTPUT
DIAGNOSTIC TEST MODE .
3. Secondary Air Pump Motor (V101) should run in intervals and air should exit pump at hose connection.
If Secondary Air Pump Motor (V101) is okay, go to step 7 . If motor runs and no air exits secondary air
pump motor, replace faulty Secondary Air Pump Motor (V101). Erase DTC memory. Verify repair. Test
is complete. Perform ECM relearn procedure. See TEST DRIVE RELEARN PROCEDURE . If
secondary air pump motor does not run, go to next step.
4. Disconnect Secondary Air Pump Motor (V101) harness connector, install LED test light at secondary air
pump harness connector terminals. Turn ignition on. Using scan tool, activate Secondary Air Pump Motor
(V101) in scan tool Output Diagnostic Test Mode (Secondary Air Pump Relay activation mode). See
OUTPUT DIAGNOSTIC TEST MODE . LED test light at Secondary Air Pump Motor (V101) harness
connector should flash. If LED test light at Secondary Air Pump Motor (V101) harness connector does
not flash, go to next step. If LED test light at Secondary Air Pump Motor (V101) harness connector
flashes, replace faulty Secondary Air Pump Motor (V101). Erase DTC memory. Verify repair. Test is
complete. Perform ECM relearn procedure. See TEST DRIVE RELEARN PROCEDURE .
5. Using DVOM check resistance of Secondary Air Pump Motor (V101) wiring. See appropriate WIRING
DIAGRAM under ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS. Resistance should
be a maximum of 1.5 ohms for each reading. Check wiring for short circuit to one another in Secondary
Air Pump Motor (N101) harness connector. Repair as necessary. Erase DTC memory. Verify repair. Test
is complete. Perform ECM relearn procedure.
Secondary Air Pump Motor (N101) wiring is okay, go to next step.
6. Check Secondary Air Pump Relay (J299) and Secondary Air Pump Relay (J299) wiring. See DTC
P0418/16802: SECONDARY AIR PUMP RELAY (J299), MALFUNCTION . Repair or replace as
necessary. Erase DTC memory. Verify repair. Test is complete. Perform ECM relearn procedure. See
TEST DRIVE RELEARN PROCEDURE .
7. Disconnect vacuum hose from Secondary Air Injection Valve (N112) and disconnect pressure hose from
secondary air pump motor, press buttons on pressure hose connector to disconnect pressure hose. See Fig.
34 . Blow lightly into disconnected pressure hose, Combi-Valve should be closed. Connect hand vacuum
pump to disconnected vacuum hose and apply vacuum to Combi-Valve, Combi-Valve should open. If
Combi-Valve opens when vacuum is applied, Combi-Valve is okay. Go to next step. If Combi-Valve
does not open when vacuum is applied, replace faulty Combi-Valve. Erase DTC memory. Verify repair.
Test is complete. Perform ECM relearn procedure. See TEST DRIVE RELEARN PROCEDURE .
8. Check Secondary Air Injection Valve (N112). See DTC P0412/16796: SECONDARY AIR
INJECTION VALVE (N112), ELECTRICAL CIRCUIT MALFUNCTION . Repair as necessary.
Erase DTC memory. Verify repair. Test is complete. Perform ECM relearn procedure.
NOTE: Do not use compressed air to check Combi-Valve.
2000 Volkswagen Passat GLS
2000 ENGINE PERFORMANCE Self-Diagnostics - 1.8L Turbo

Posted on Jun 21, 2008

  • 6 Answers

SOURCE: 2006 vw passat 2.0 tdi cut out & non start

its built into the ECU

Posted on Mar 29, 2010

  • 632 Answers

SOURCE: Code P1420 suggests replacing the secondary

17828/P1420/005152 - Secondary Air Injection Solenoid Valve (N112): Electr. Malfunction Possible Causes

  • Secondary Air Injection Solenoid Valve (N112) faulty
  • Secondary Air Pump Relay (J299) faulty
Possible Solutions
  • Check Secondary Air Injection Solenoid Valve (N112)
  • Check Secondary Air Pump Relay (J299)
The secondary air injection pump relay (J299) is inside the engine compartment, left side, behind air cleaner housing, under a black plastic protective cover you can lift up to reveal it. It's near the brake fluid reservoir beside the odd black plastic cover for the wiring harness beside the shock absorber tower.

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Posted on Jun 18, 2010

TDISLine
  • 1874 Answers

SOURCE: where is the secondary air

2004 Audi A4
The secondary air injection pump relay is no.# 2 relay = R2, placed inside the engine compartment relay box.

tdisline_566.jpg

Posted on May 24, 2011

cansmo
  • 2431 Answers

SOURCE: I have a 2007 Chevrolet Trailblazer we have

P2432 secondary air injector system pressure Sensor circuit low. Have you check the air control solenoid valve itself? Also look for obstruction. It is listed as number 1 in the fiqure.10_2_2011_3_30_28_am.gif

Posted on Oct 02, 2011

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2 Answers

Where do i find what codes po418 located and code p2445 located


PO418 Secondary Air Injection System Relay A Malfunction and the second code was: P2445 Sec Air Inj System Pump Stuck off (Bank 1).

Feb 24, 2011 | Toyota Tundra Cars & Trucks

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I have a 2001 VW Jetta 1.8T. The check engine light came up and the codes that came up were P0171 (System too lean, meaning there is too much oxygen in the exhaust). And P0411 (Secondary air injection...


problem is bad AIR FLOW sensor! I am replaced in my 1.8T PASSAT with tuning chip 6.pcs air flow sensors over 3 years !!!!! All VW cars have a air flow problem!!!!! And not only this!!

Nov 15, 2010 | 2002 Volkswagen Passat

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2002 VW Passat GLS 1.8T throwing two codes: P0171 and P0411. No noticeable loss in performance. Can I fix this myself?


System Too Lean (Bank 1)

Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1.
Note: This DTC is very similar to P0174, and in fact your vehicle may show both codes at the same time.

P0411 Secondary Air Injection System Incorrect Flow Detected, check the...Combination valve
...Secondary Air Injection pump motor
...Secondary Air Injection solenoid valve
I would take it to a mechanic

Apr 16, 2010 | 2002 Volkswagen Passat

2 Answers

Engine warning light came on. Diagnostic


P0411-Secondary Air Injection Incorrect Upstream Flow Detected. Could be the vacuum hose, combi-valve, and/or the pump http://www.passatworld.com/forums/showthread.php?t=170246. Read that thread and see if you think you or maybe somebody you know can tackle the problem.

Feb 09, 2010 | 2004 Volkswagen Passat

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P0411 code 99 Passat


The secondary Air Injection system, this is basically an inspect and replace broken hose detail. Leave the inlet hose disconnected and start the engine. Listen and feel for exhaust hissing at the check valves.The check valve(s) will make like a gurgling sound as air is drawn in However , if exhaust is felt or heard replace the valve. Hope this works out for ya.

Jun 10, 2009 | 1999 Volkswagen Passat

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2004 VOLKSWAGEN PASSAT V6 NO HEAT LAST YEAR HEAT WOULD BARELY GET WARM THIS YEAR I TURN ON HEAT AND GET NOTHING BUT AIR A/C CAR HAS CLIMATE CONTROL UNIT


Had this problem after replacing water pump. Hard system to bleed. small bleeders on heater hoses and one near the front of the engine.
VW vortex has a post on cooling system bleeding. check to see if both heater hoses are hot. if so check the climate control: push econ and mode at the same time. it will give you codes. The blend door can be checked for freedom of movement.

Aug 13, 2008 | 2001 Volkswagen Passat

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