mr747

Well today after thrashing around yes the cel light came up

I went to my mechanic today and it was the oxy sensor

Anyhow we reset the code and cleared it and on the way how after a little squirt with a Holden ute it came up again

Now my car is running really rich or well it has been since I put the headers on

Now I'm waiting for oe to send me the handheld and tune

Question is after I load this tune in and the mixtures lean off a bit will the light come off or will it have to be cleared again??.

And are my oxy sensors stuffed and do I have to get new ones??

Also where can I get them?? I called Mercedes melb and they want 300 each

aussie e55

get a quote from your indi workshop he will save u big dollars on parts & labour.

Merc63

Are you running headers with no tune?? It would lean out, not richen.

Chech online for sensors.

I have some used ones here too.

mr747

No I have a tune but only a stage one tune

I'm waiting for the handheld which I should get tomorrow

The dyno says its ultra rich

How much do u want for them merc

Merc63

http://www.partsgeek.com/mmparts/oxy...s/c63_amg.html

Better off with new.

How rich are you running?

mr747

I'm in the 10s in the low rpms and up high the car goes into the low 9s as the rpm rises