Secondary air injection code P0410 and catalytic converter recommendations.

Mantist · Dec 26, 2015

Hi,

Ever since replacing the head gasket nothing but trouble. Now there is secondary air injection code P0410 and the cat readiness monitor flashing. I was able to reset them 3 times but this time the cat rediness monitor has been flashing over 1000 miles. Also just replaced downstream O2 sensor. The upstream O2 sensor is less than 1 year old. Any ideas? I want to replace the cat. Any recommendations, stock or universal? Car has been driven over 210k miles. Thanks..

Mantist · Jan 20, 2016

Update,

Replaced cat. and downstream oxygen sensor. No issues for over 500 miles. :smile:

efair · Jan 20, 2016

life is good!

jnc1948 · Jan 20, 2016

I haved the code p0410 also let me know what you find out about it and what it was.

thanks

jnc1948

Mantist · Jan 21, 2016

Code P0410 indicates secondary air injection system issues. Usually involves replacement of either or both check valve and shutoff valve. However, I replaced mine sometime ago and still get code P0410. You may read this thread for more:

http://www.slkworld.com/general-discussion/9089-cel-p0410-bites-dust.html

Australian · Jan 21, 2016

There are numerous reasons for a P0140 code. There is lots of information on this forum if you search. There is also a lot on Benzworld.org in the ML section.

In my case it was the soldering issues on the K40 relay card.

Mantist · Jan 22, 2016

You meant P0410, right?

Australian · Jan 22, 2016

Oh yeah - P0410. My fingers can't keep up with my brain! Or is it the other way 'round?

jnc1948 · Jan 22, 2016

Right P0410..... Evert one that I talk too says it is safe to drive...

Thanks

jnc1948

Secondary air injection code P0410 and catalytic converter recommendations.

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