P0410 code

Tiny
MONSTERQIQW
  • MEMBER
  • 2001 SATURN SL2
  • 1.9L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
The air pump works I changed the diverter valve cleaned the metal tube that runs from the diverter valve to the manifold cleaned the opening in the manifold checked the voltage to the solenoid next to the diverter valve it is ok checked the resistance of the solenoid(it is 5 ohms on a rx 10 scale) found a vacuum leak in the tube that runs from the back of the motor to the diverter valve fixed it there is a check valve that runs from the back of the motor to the diverter valve I have not checked it. Is there a way I can check it?And is there another solenoid next to the air pump itself? If so how do I check it? Is there anything I have missed?
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Tuesday, June 17th, 2014 AT 2:03 PM

12 Replies

Tiny
SATURNTECH9
  • EXPERT
Have you checked to see if the air injection ports in the exhaust ports in the head are clogged?Sounds like they are.
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Wednesday, June 18th, 2014 AT 6:10 AM
Tiny
MONSTERQIQW
  • MEMBER
No, I have'nt checked the air injection ports.I have been trying to avoid that.I don't want to take the manifold off. Will I be able to get to the flange bolts without lifting the car?Will I be able to take the flange bolts off from the top?What do the injection ports look like in the head?Where, exactly, are they located?Also, I was able to blow through both sides of the vacuum check valve--not the diverter valve, but the one that is along the vacuum line. Should'nt I be able to blow air through only one side?Will this check valve set off the 410 code?I really appreciate your help.I would donate money, but I am broke right now. Sorry.I will donate at a later date though. Again--I thank you for your help and advice.
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Wednesday, June 18th, 2014 AT 7:23 AM
Tiny
SATURNTECH9
  • EXPERT
On cold starts the air injection solenoid gives the combo valve vacuum? The combo valve holds vacuum? If all these answers are yes you have clogged air injection ports in the head or exhaust manifold or both or you have a bad o2 sensor in the exhaust manifold that is lazy slow to change.
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Wednesday, June 18th, 2014 AT 9:14 AM
Tiny
MONSTERQIQW
  • MEMBER
The pipe is clear;the combo valve is new;the fan cuts on and off as it should;but the vacuum air check valve on the vacuum line itself blows air through both sids---not the combo valve---the air check valve. Can I get the exhaust manifold off from the top of the motor---even the down pipe bolts?The flange bolts?Also, will the vacuum air check valve--NOT THE COMBO VALVE, THE AIR CHECK VALVE-- that allows air to pass on both sides set off the 410 code?
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Wednesday, June 18th, 2014 AT 10:29 AM
Tiny
MONSTERQIQW
  • MEMBER
The O2 sensor gives off a different code if it isn't working properly
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Wednesday, June 18th, 2014 AT 10:34 AM
Tiny
MONSTERQIQW
  • MEMBER
Yes, the air pump comes on and the combo valve is new;the metal pipe is clear. There is also a check valve on the vacuum line leading from the back of the motor;it blows air in both directions when I blow through it. Will this set off the 410 code?This is not the combo valve;it is a simple air check valve. Can I take off the exhaust manifold from the top of the motor?Including the flange pipe bolts. Also known as the down pipe bolts--I think.
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Wednesday, June 18th, 2014 AT 11:20 AM
Tiny
SATURNTECH9
  • EXPERT
Yes you are correct there is a p0133 front o2 slow response but there is always a exception to every rule. Just recently had a 1999 sw2 with p0410 code went over everything was good. But when I watch the front o2 sensor readings they didn't drop bellow 200 mv on the scan tool like there supposed to with the air injection system on. So I replaced the front o2 sensor codes gone. I am a factory trained saturn tech and have worked for saturn for over 16yrs. So I know these cars really well. You should never blow air thru that vacuum check valve its designed for vacuum. You probably blew it out. But as long as the combo valve is getting vacuum it shouldn't set the code. You have to put the front of the car up on jack stands. So you can unbolt the down pipe so it will drop down when you remove the nuts from the down pipe to the exhaust manifold. Also you will have to unbolt the ac compressor and bracket and move it aside. The way the ports in the head work is they start by going straight in thru the manifold. Then you will see the port seperators on each port coming off the head. In the port and on the side of the seperators is where you will find the exit for the air injection ports. Exhaust is always going by them and thats how they get clogged. Especially if your buring oil which those engines are known for doing.
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Wednesday, June 18th, 2014 AT 12:42 PM
Tiny
SATURNTECH9
  • EXPERT
Also the one with the p0410 code that the o2 sensor fixed the code didn't have a o2 sensor code only the p0410 code.
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Wednesday, June 18th, 2014 AT 12:47 PM
Tiny
MONSTERQIQW
  • MEMBER
Perfect answer! I replaced the o2 sensor because I had the code you were talking about first. After that, I got the--dreaded-- 410 code.I will take the exhaust manifold off and clean every orifice I see. God this really sucks! I hope that I don't break the studs off. I'll spray them with lubricant a couple of times before I take manifold off.I think I'll wait a week before I try. That shoud give the lubricating oil plenty of time to penetrate. HEY!Thank you soo much! You really helped. I'll have to buy all of the required gaskets.I know, I will need them. It does use a lot of oil, all Saturns do. Especially after a hundred and twenty thousand miles. Again thank you so much and for your paitence and time.I will donate money to this site as soon as possible. And I won't forget! THANK YOU!
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Wednesday, June 18th, 2014 AT 1:33 PM
Tiny
MONSTERQIQW
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Oh! And is it ok to use MMO to help clear some of the gunk that has--probably--caused the oil relief rings to stick(I hope that is what they are called, or is it oil blow back rings) on the piston?Just put it directly in where the fill up cap is?And drive maybe 500 miles and then change the oil?
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Wednesday, June 18th, 2014 AT 1:47 PM
Tiny
SATURNTECH9
  • EXPERT
I would say no especially if it goes in the oil iam not familiar with that product. At the dealer we pulled the spark plugs. Then took gm top engine clean put equal amounts of it in each cylinder. Then let it soak then crank it over to blow it out into rags. Then put the plugs back in then blow it out by running it. Then change the oil with synthetic oil and replace the pcv. Thats a saturn bulletin I can get you the gm part number if you want I have a bottle around somewhere. Also get a product called deep creep made by sea foam its a penetrant that will free bolts and eat carbon.I use it all the time when you donate make sure you say this is for saturntech9 help. That way I will get credit for answering your questions.
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Wednesday, June 18th, 2014 AT 8:45 PM
Tiny
MONSTERQIQW
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Yeah, I would like that part # for the top engine clean and I will be sure to mention Tech9 when I donate. It may take me awhile, so be patient. Again, thank you.
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Thursday, June 19th, 2014 AT 8:44 AM

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