**code po410 **

TLY-BAMA · 11-17-02, 12:28 PM

gm tech has replaced secondary air injection pump twice in the last month, code has set again. any ideas what is causing this? vette is a 99 vert. with 31,000 miles. car is my brother in-laws. thanks.

c4c5specialist · 11-17-02, 12:52 PM

Hi there,
P0410 is for the air injection unit.
However, a few questions please.
When the vehicle is started cold, do you hear a humming noise from the left front headlamp area?????? The air pump is located below the headlamp assembly.
Have there been any air injection check valves replaced?????
Please let us know how you make out, and we can proceed.
Allthebest, and welcome to the CAC, c4c5

TLY-BAMA · 11-17-02, 02:28 PM

hello c4c5 and thanks for the reply. i will check with my brother in-law and let you know.

TLY-BAMA · 11-17-02, 11:51 PM

c4c5 you've got mail.

c4c5specialist · 11-18-02, 06:44 AM

HI there,
From what you are saying in the mail, I am suspecting that both sides, drivers, and passenger air injection check valves have rusted shut, causing your condition described in the post.
If you reference the diagram attached here, you will see the actual valves. The one toward the top of the page, is the passenger side. This one, you will have to remove the intake manifold to change.
The valves are the round black things, that have a 1" fitting on the end.
I would recommend changing the drivers side, which is the lower in this picture, and then reset the code, and see what comes back.
If I am on my game, you will not see the p0410, you will most likely see a 1416 once this valve is replaced. If this is the case, then you only have to replace the passenger side, and you repair the condition.
As for your TCS codes, the email described more in detail what you should do next.
Please keep us posted on how you make out, c4c5

TLY-BAMA · 11-18-02, 10:42 AM

Got your attachment. Have faxed your attachment and e-mail to Buddy. I will keep you posted. Thanks for the help.

11-23-02, 07:21 PM

TLY- Bama,

I suggest that you also check your battery for a crack. I got the same error and found that the battery had cracked and the acid had eaten through my wiring harness. What a mess!! Also noticed after the fact that acid was on the floor below my 2000 Red Vette.

VetteDaddy

TLY-BAMA · 11-23-02, 10:05 PM

Thanks VetteDaddy. I sent that info. on to my brother in-law. He was having that code set. Dealer has replaced air pump twice and found out this time it was a short up front where a wire was pinched. I don't know how or why,yet.

TLY-BAMA · 11-23-02, 10:34 PM

Thanks VetteDaddy. I sent that info. on to my brother in-law. He was having that code set. Dealer has replaced air injection pump twice and found out this time it was a short up front where a wire was pinched. I don't know how or why,yet.