I had autozone pull the code from the check engine light.

Their scanner said

"incorrect air injection flow"

P0411

Any ideas? I am going to have my friend with a mercedes scanner check it on friday.

__________________
Current Stable:
1994 S500 v140, 210k miles, white with grey.

Former Mercedes in the Stable:
1983 300CD Turbo diesel 515k mi sold (rumor has it, that it has 750k miles on it now)
1984 300CD Turbo Diesel 150 k mi sold
1982 300D Turbo Diesel 225 sold
1987 300D Turbo Diesel 255k mi sold
1988 300 CE AMG Hammer 15k mi sold
1986 "300E" Amg Hammer 88k mi sold (it was really a 200, not even an E (124.020)
1992 500E 156k mi sold
etc.

Sounds like the Mass Air Sensor don't it? Is he running a K&N or another high-flow filter?

__________________
Mike
-W126C 560SEC 040 Black
*6.0L AMG M117 32v Hammer
-W163 ML320 Brilliant Silver
-W124 300E Pearl Black

Hope its not the MAF or the engine harness.

OE air filter (Mann or something)

__________________
Current Stable:
1994 S500 v140, 210k miles, white with grey.

Former Mercedes in the Stable:
1983 300CD Turbo diesel 515k mi sold (rumor has it, that it has 750k miles on it now)
1984 300CD Turbo Diesel 150 k mi sold
1982 300D Turbo Diesel 225 sold
1987 300D Turbo Diesel 255k mi sold
1988 300 CE AMG Hammer 15k mi sold
1986 "300E" Amg Hammer 88k mi sold (it was really a 200, not even an E (124.020)
1992 500E 156k mi sold
etc.

Austin sounds like clogged egr port in cyl head/but first test the egr valve. When engine running vacuum test valve see if engine stubles and almost wants to die,if not,you have a clogged port where the egr pipe goes into intake manifold. I gather from what you said the code was.






Guido

__________________
500E Sold
2006 Mini Cooper S
Modified,pulley,injectors,suspension
2009 E350 Sport AMG package

Hey Guido,

Ill check out the EGR tonight.

I was trying to learn how to use the diagnostic directory microfiche. I was looking in group 54 for the 202 chassis, and I couldnt find anything. Do you have a video on how to use the Fiche? Maybe I could borrow it.

So much info, just hard to find if you dont know where you are looking

My friend has an AST mercedes scanner, he is going to check it tomorrow for me. So I will check the EGR before then.

Thanks

__________________
Current Stable:
1994 S500 v140, 210k miles, white with grey.

Former Mercedes in the Stable:
1983 300CD Turbo diesel 515k mi sold (rumor has it, that it has 750k miles on it now)
1984 300CD Turbo Diesel 150 k mi sold
1982 300D Turbo Diesel 225 sold
1987 300D Turbo Diesel 255k mi sold
1988 300 CE AMG Hammer 15k mi sold
1986 "300E" Amg Hammer 88k mi sold (it was really a 200, not even an E (124.020)
1992 500E 156k mi sold
etc.

I was inspecting the car, and the hose that attaches to the smog pump that goes between two of the exhaust ports on the exhaust manafolds came off.

I put the hose back on and reset the light. I will drive the car around and see if the light comes on tomorrow.

I think the EGR valve is ok. we shall see!

__________________
Current Stable:
1994 S500 v140, 210k miles, white with grey.

Former Mercedes in the Stable:
1983 300CD Turbo diesel 515k mi sold (rumor has it, that it has 750k miles on it now)
1984 300CD Turbo Diesel 150 k mi sold
1982 300D Turbo Diesel 225 sold
1987 300D Turbo Diesel 255k mi sold
1988 300 CE AMG Hammer 15k mi sold
1986 "300E" Amg Hammer 88k mi sold (it was really a 200, not even an E (124.020)
1992 500E 156k mi sold
etc.