Question about Chevrolet S 10

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Secondary-air system will not give a reading(come back on line)after disconnecting the battery

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  • dstead223 Feb 06, 2010

    after clearing all im monitors codes and then driving over 400 miles i am still getting (not ready)reading for the secondary air and the evap system

  • dstead223 Feb 06, 2010

    thank you for replying.i know the air pump runs i know the relay is good,the hose from the solenoid has vacuum on cold start up.i have driven another 274 miles completing 5GM driving cycles. all im monitors read ready except secondary air and evap. monitors which read not ready.

  • mike watson
    mike watson May 11, 2010

    could you please be more specific on what you mean?

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  • 474 Answers

I know that it takes a certain number of key cycles at different temps. and a number of drive cycles incuding interstate driving to get all the monitos ready.Some do take a lot longer than others.I would say keep driving if you can or haven't done that already.

Posted on Feb 06, 2010

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2001 chevrolet tahoe secondary air system not working cant pass smog all I did was replace battery before getting it smog


Disconnecting the battery resets the PCM - engine computer ,an the emission monitors . A drive cycle has to be done to get the monitors to run an hopefully set. That's all you need to do is drive it for few days of different driving conditions - city , highway ,from cold start . google GM drive cycle . OBD Monitor Not Ready

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How do you repair a code po171 on a 06 chevy trailblazer


DTC P0171: Bank 1 system too lean. Probable cause:
1. Wire harness fault. Check for correct voltage, open, Short to ground, short to voltage.
2. Fuel pressure problem. Check pump, regulator, filter and lines
3. Exhaust leaks or restrictions
4. Vacuum leaks. Damaged hoses or incorrect routing
5. Fuel contamination
6. Sensor installed incorrectly

Nov 08, 2014 | 2006 Chevrolet Trailblazer

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My 1996 ford f-150 in line 6 cyc. is giving me the code p0411


The P0411 code is secondary air injection system

the air injection system does not detect air in the exahaust when introduced by the secondary air injection system

could be
electric air pump
hose from air pump leak or blocked
air bypass solenoid blocked or not working

get a mechanic to look at your car

Mar 02, 2011 | 1996 Ford F150 Regular Cab

2 Answers

Code p0410b secondary air injection system? what does it meen? what is the cause?


The secondary air injection system is an electric low pressure air pump that blows air into the exhaust stream to help burn up Hydrocarbons (HC), it only operates under certain conditions such as a cold engine. The common cause of failure is that the electric pump motor fails. The pump is sold as one complete assembly and is located under the hood of the car in the engine bay. The part is about $300 and is dealer only. Below are all the possible causes of the OBD2 fault code P0410 Possible causes - Vacuum hoses damaged.
- Air Pump inoperative. (most common cause)
- Air bypass solenoid circuit open.
- Air bypass solenoid leaking/blocked or stuck open/closed.
- Air diverter valve leaking/blocked or stuck open/closed.
Other possible causes and solutions to the code. - Visually inspect vacuum lines for disconnects in the AIR systems and visually inspect for proper vacuum line routing. Repair if necessary.
- Disconnect the air pump hose at the solenoid valve, start the engine and see if there is air being pumped

Feb 18, 2011 | 2005 Isuzu Ascender

1 Answer

P 0411


DTC P0411 is most often caused by a bad Secondary Air Injection pump or a bad Secondary Air Injection solenoid valve . Disconnect the air pump hose at the solenoid valve, start the engine and see if there is air being pumped out. If not, the pump is bad.

If there is air being pumped out, unplug the vacuum line at the solenoid valve and remove the valve. Blow through the valve. You should not be able to. Now apply vacuum to the valve and blow through it. Now you should be able to. If not the valve is bad.

Make sure the vacuum line is fully seated, against the stop, on the solenoid valve. In some cases, the vacuum hose leading to the solenoid valve for the Secondary Air system may not be fully seated on the Combi-valve tube.

I tried to give you an image but am unable. I hope this helps anyhow. Good luck.

Feb 05, 2011 | 2000 Volkswagen Jetta TDI

1 Answer

Keeps giving P0171 reading any help


P0171- System Too Lean (Bank 1)

The adaptive fuel strategy in the vehicle's computer constantly monitors the fuel delivery system to make sure the engine is running at an optimum air to fuel ratio, which is 14.7:1. The computer adjusts injector pulse width to regulate the amount of fuel going into the engine. The oxygen sensors relay information to the Powertrain Control Module (computer), informing it of the oxygen content in the exhaust. This information is translated by the computer, and used to determine if more or less fuel is needed. The computer will then adjust fuel flow (and possibly other related engine operating characteristics), to keep the correct air fuel mixture. This loop continues as long as the engine is running.

A P0171 check engine light code is set when the computer has reached a rich calibration limit and can not add enough fuel to maintain the correct mixture.

Possible Causes:
The following is an overview of P0171 check engine light code possible causes.

Fuel System:

Leaking or faulty fuel pressure regulator
Plugged or dirty fuel filter or lines
Fuel pump weak or defective check valve
Injectors leaking or faulty
Low fuel pressure or running out of fuel
Leaking EVAP system components
Faulty FRP (Fuel Rail Pressure Sensor)

Air Intake System

Vacuum leaks
Contaminated, damaged or faulty Mass Air Flow sensor
PCV valve leak or stuck open
Air induction turbulance caused by wrong filter
Oil dipstick not seated
Air leaks after the Mass Air Flow Sensor (MAF)
Oil coated aftermarket air filter

Exhaust System

Any exhaust leak before or near the oxygen sensors

EGR System

Vacuum line disconnected from EGR System Module (ESM)
EGR valve, tube or gasket leak
EGR vacuum regulator valve leaking

Secondary Air Injection System

Mechanically stuck secondary air injection valve

Diagnostic Help:
A very thorough discussion of how to approach and repair a P0171 check engine light code can be found here. If you need further assistance let us know. Please be sure to stop back in and visit some of our other very useful site features to lear more about your car's emissions system.

Hope this helps (remember to rate this answer).

Jan 22, 2011 | 2000 Volkswagen Beetle

1 Answer

Have engine codes P1411 and P0411 secondary air injection system malfunction and catlyst not ready problem, car drives fine, but no pass smog, any help would be appreciated, need emission diagram if...


CHECK SECONDARY AIR PUMP SOLENOID FUSE AND VACUUM LINE TO SOLENOID.IF FUSE AND VACUUM LINE OKAY GETTING VACUUM. THE SECONDARY AIR PUMP SOLENOID OPEN OR SECONDARY AIR PUMP FAULTY.ALSO CHECK CHECK VALVES AND THE AIR LINES GOING TO EXHAUST MANIFOLD. MAKE THEY ARE NOT DAMAGED OR LOOSE.THE CHECK VALVES ON THE LINES IS ONE WAY VALVES YOU SHOULD NOT BE ABLE TO BLOW BACK INTO VALVE IF SO ITS FAULTY.

Jul 07, 2010 | 2001 Porsche Boxster

2 Answers

Car is choking out and dying. Reads P 0411 code. How do I know if its the motor or just the solenoid valve? How can I check to narrow down what actually is causing the problem? It's on a 2000 VW jetta VR6


16795/P0411/001041


if (window.showTocToggle) { var tocShowText = "show"; var tocHideText = "hide"; showTocToggle(); } 16795/P0411/001041 - Secondary Air Injection System: Incorrect Flow Detected Possible Symptoms
  • Malfunction Indicator Light (MIL) ON
Possible Causes
  • Fuel Pump Relay (J17) faulty
  • Hoses/Pipes to/between Components faulty/clogged
  • Secondary Air Injection Pump (V101) faulty
  • Secondary Air Injection Pump Relay (J299) faulty
  • Secondary Air Injection Solenoid Valve (N112) faulty
Possible Solutions
  • Check Fuel Pump Relay (J17)
  • Check Hoses/Pipes to/between Components
    • Check Secondary Air Injection Hoses/Pipes for Carbonization
  • Check Secondary Air Injection Pump (V101)
  • Check Secondary Air Injection Pump Relay (J299)
  • Check Secondary Air Injection Solenoid Valve (N112)

Apr 28, 2010 | 2000 Volkswagen Jetta TDI

1 Answer

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

1 Answer

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

Jun 21, 2008 | 2000 Volkswagen Passat 4Motion

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