Like mentioned above, it is probably due to the MAF sensor. Ive had mine replaced and no more problems. I also upgraded to the FR6s....definitiely a must if you have an exhaust or any software program on your car.

 

I had the secondary air injection when I bought my car. I replaced the diverter valves and the poblem was solved. Hope that helps. GL

-Suman

Do diverters and maf and see where your at

 

Hi rcalcaide

How can you be sure it is the O2 sensor?
You can get the exhaust place or the dealer to check the connection, or alternatively you can get them replaced.

Good luck and let us know how you go.

 

almost ALWAYS MAF..

I've never been wrong yet...

 

Thanks for all the responses to this old thread.

Update: 40 K service last week / replaced plugs(FR6's) and problem solved.

 

I have an 2001 996tt just replace stock exhaust with a 2nd hand Tubi. After about 30mi. received a CEL code P0410. Could someone confirm a solution to this?

 

P0410 is secondary air pump not triggering. Do you hear this pump come on when you cold start the engine?

If you don't hear the pump check the wiring connections. You might have pulled something loose doing the exhaust mod.

Check the air pump fuse. I'm not sure which fuse. I think the fuses are listed on a label on the inside of the fuse lid.

If the fuse is ok there's a relay IIRC that can be bad.

If the connections are good and the fuse is good and the relay is good, then suspect the hoses or their connections.

 

Thanks, I'll check it out.