2001 Saturn SL2 SES Lt. On Continuously.

TOYSAT

MEMBER
2001 SATURN SL2
4 CYL
FWD
AUTOMATIC
81,697 MILES

2001 Saturn SL2 SES Lt. On Continuously.
January-14-2011

2001 Saturn SL2 SES Lt. On Continuously. Fault code = Po0410 Secondary air injection.
Pump activates briefly upon engine starting. Hoping you may know of a solution to this issue if it's common problem w/Saturn’s’.

Inspected and searched for: Vacuum leaks, electrical wires (conductors, terminations-connections, fuses, & relay) & vibrations.
If I correct the problem, do I need to clear or reset the car computer/data to get the SES light to deactivate?
I need to get a smog test by the end of the month.

Thanks

5 Replies

KHLOW2008

MECHANIC
41,814 POSTS

Common problem for such codes are a clogged tube between the valve to the exhaust manifold. You would need to clear the clogging with the aid of carb cleaner and a stiff wire. If clogging is bad, the manifolds would have to be removed to clear the clogging inside the port of the cylinder head.

If SES does not turn on when engine is running, the memory for the DTC would automatically be cleared after 40 consequtive warm-up cycles.

Disconnecting the battery would clear the DTC but it would also reset other memory systems.

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Saturday, January 15th, 2011 AT 1:24 PM

SATURNTECH9

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My take on it I haven't really seen any clogged port's on those.I have seen the vacuum line come off by the power steering pump.I have also seen the air shut off/Check valve on top of the a/c compressor go bad.I would rent a hand vacuum pump and hook it to the vacuum nipple on it and see if it hold's vacuum if it doesn't I would replace it. That's where I would start it's going to be hard to diagnose without a tech 2 and the correct software with the special test to run the air pump turn on the air pump solenoid to see if the front o2 sensor reading drop below 200 mv while idling. SO start by checking those two thing's. Also make sure at idle there is vacuum at the air pump solenoid nipple from the intake manifold. How have you been KHLow2008?Hopefully the new year has been good to you.

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Saturday, January 15th, 2011 AT 6:29 PM

KHLOW2008

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Hi SaturnTech9,

I am fine, thanks, hope your are as well.

Information about the clogging came from Mitchell 1 whereby more than 1 mechanic had personal experience on it.

Thanks for the additional information.

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Saturday, January 15th, 2011 AT 8:37 PM

SATURNTECH9

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I'm sorry KHLow2008 I didn't mean it like that I worded it wrong.I just ment I have never seen a clogged port cause that code. Anything is possible.I'm doing good though this year so far lol.

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Sunday, January 16th, 2011 AT 2:58 PM

KHLOW2008

MECHANIC
41,814 POSTS

I understood what you meant. Sometimes we do not come across problems whereas others have and they have shared the problem which helps if the case is similar.

This all boils down to experience and luck, luck of coming across such problems and being able to resolve the problem.