Question about 2001 Oldsmobile Aurora

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Secondary air pump code keeps comming up is it the pump or something else the fuse is fine.

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Most likely it is one or both of the check valves in the system. These run about $200.00/ea. The is no real value in replacing them, except to get the code to clear.

Posted on Nov 18, 2009

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Where can I find the fuse and relay for air injector pump on a 2005 chevy trailblazer LS?


AIR SOL - fuse #54 15amp - AIR fuse #56 60amp location under hood fuse / relay box
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2002 CADILLAC DEVILLE CODE P0412


p0412 Secondary air injection switching valve A circuit
Right side of engine compartiment. ( underhood fuse block )
- Air pump fuse 50A- Air control valve relay- ignition1 fuse 10A ( positive for the relay )The secondary air injection pump relay is located near radiator surge tank.Left front of engine compartiment = Secondary air injection pump

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2001 ZR-2 BLAZER HAS 4.3 V6 KEEPS GIVING P 0410 trouble code = secondary air injection system. What is this fault code saying and what is the fix?


your vehicle has an air pump that puts air in to the exhaust cooling it to reduce nox gasses most likely the pump has sucked up water shorting it out and blowing the fuse. there is an updated pump inlet and pump to fix this problem also need to replace the fuse after replacing pump.

Dec 16, 2010 | 2001 Chevrolet Blazer

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

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Obd code of p0411 on a 1999 ford mustang 3.8 v-6 what do I check to correct


That's s failure of the secondary air pump. It'll have to be changed. It's an emissions component meant to help with cold start emissions. It won't cause engine running trouble but at inspection time you'll fail for smog. Change it before then and you'll be fine.

May 16, 2010 | 1999 Ford Mustang Cobra

2 Answers

I have a 2004 buick rainier and i,m getting a code po410


P0410 Secondary Air Injection System Malfunction
I am very familiar with this failure code, you are going to have to replace the secondary air injection pump, it has a failed motor in it, the code really indicates no airflow from the pump when commanded to be on.

May 28, 2009 | 2004 Buick Rainier

2 Answers

1994 Mercedes C220 Code P0414


hello,seems you need a diagnosis manual (engine vol.4) model 202.025 with engine 111, to fix your problem,workshop have this book to guide them step by step test procedure,maybe loose electrical connection on air pump switch over valve,valve for secondary air injection,no output form air pump.,

May 04, 2009 | 1994 Mercedes-Benz C-Class

1 Answer

Diagnostic code 410


PO410, Secondary Air System Performance

Possible Causes:

AIR solenoid power circuit is open (check the U/H IGN fuse)
AIR pump is damaged or has failed (inspect air pump for water)
AIR system check valves and/or pipes are damaged or leaking
AIR system hoses or lines are damaged, pinched or kinked
Base engine problem (e.g., excessive exhaust back pressure)
PCM has failed

The pump is up near the radiator, common problem.

Mar 10, 2009 | 1999 Chevrolet Blazer

2 Answers

I have a 2001 gmc jimmy wiTh a secondary air injection code. bought THE VEHICLE used and had the code checked in the summer because it is hard to start it turns over,i replaced the fuel pump relay i also...


this is most certainly the electric motor driven secondary air injection pump, very prone to failure.
Price at www.rockauto.com $207.00 (lowest anywhere)
AC DELCO Part # 219505 {#17803251}
PUMP,SECD AIR Injection w/ELEC AIR INJECTION REACTOR(K18)

Feb 13, 2009 | 2001 GMC Jimmy

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