2000 Park Avenue Secondary Air Injection

[avtechwx3]

Hi Folks,
N
Replaced upstream O2 sensor and Egr valve due to codes. Now getting code for secondary air aka smog pump. Location and install are my questions. Thanks much.

 

[BuickGirlFromMars]

Hi Folks,
N
Replaced upstream O2 sensor and Egr valve due to codes. Now getting code for secondary air aka smog pump. Location and install are my questions. Thanks much.

Is your vehicle a california emissions car? There shouldnt be a secondary air injection system on this engine unless you are in california in certain years

 

[2007LucerneCXL]

#31 GM#12568224 PUMP,SECD AIR INJN(ACDelco #215-417), you will need to confirm part number for your vehicle. If you are tossing parts at a code it may be worth getting it checked with a professional scan or service.

 

[avtechwx3]

Thanks for the replies.

No, its not a California car, car was bought in Ct. Why would the code be going off if secondary air should not be installed? Does that happen?

Originally, I replaced the upstream O2 sensor after replacing the cat a year ago. no problem with the cat but i then replaced the O2 sensor again with a better unit because I kept getting the code. Then got the EGR code once with the car shaking upon startup numerous times. Replaced that and no more shaking or code.

Now i'm getting the upstream O2 and secondary air code most of the time together. Engine running great though.

Any ideas?

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[MelsRegal]

Can you post the codes?

 

[avtechwx3]

0410 for the secondary air and whatever the upstream O2 sensor is. Usually happens on startup which is when secondary air activates during the first 2 minutes.

 

[2007LucerneCXL]

Check the diagram for the part simple way to find out, but if you or someone you know isn't the original owner hard to say where the car came from. There may be additional stickers in the engine compartment that may be helpful. Sorry I don't know much about the pump, hoses, one way check valve, there may be a fuse or relay that should be checked.

 

[BuickGirlFromMars]

Are there brackets hanging off the front part of the subframe toward the forward ears? That is where the secondary air pump mounts and one diverter valve I think.

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[MelsRegal]

Read the link, mentions GM TSB

OBD-II Trouble Code: P0410 Secondary Air Injection System Malfunction

www.obd-codes.com