The 95 E320 is vibrating very bad, the check engin light came on so I checked the computer and found that the 7 code came up. On JimF's page the 7 code is "Knock control output switch in ignition control module (N1/3) defective" and the remedy is to replace the N1/3 so my question is where is the N1/3, what does it do and what could have caused this problem, could water be at fault?
Thanks
Subman

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-2002 C32
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Did you get the code 7 from the ign control module, or did you just get a code 7 from the led/sw on the N/59 diagnostic plug
[ emission codes} ???

I got the code form the LED on the plug. By pushing it and watching how many times it flashed. I have foud out what the part is but I dont know how much it will cost or if I could, just clean the contacts on the plugs (on the control module) and see if that works.
Subman

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-2002 C32
(E420 has passed away)
The best way to contat me is e-mail.

Code 7 from the led/sw on the 16 pin diagnostic box simply codes that there is a fault in the ignition .
The specific ignition code of knock sensor circuit would be code
25.
So that can mean any ignition fault, from a bad plugs, coils , etc to a shorted Wire Harness [ might want to see if that has been changed]
Your car is Distributorless ignition and has 3 coils. [ each fires 2 plugs at once].
Because you mention engine vibrations, you may want to check
the plug as one bad can effect 2 cylinders [ symptom-shaking, misfiring eng. and code 7]
I also noticed you questioned if this could be water related.
Did you just clean eng with water?
The reason I ask is that the 104 engine has the plugs/wires
mounted in the "V" of the head between the cams and they are suseptible to water ignition shorting as the water goes right down to the plugs and can't get out. If that is the case [ just guessing here from your info] . pull the top cover for the plugs/wires, dry it out , reset the 7 code and give it a try. While in there, I would check the wire harness for bad insulation.
If you do have ignition module problems , then a scan for codes can be done to narrow it down, but the led you are using only
brings up emmission faults in general and pops the CK Eng lamp.
It does not go into each system for in depth diagnoses. That
is what the other 16 sockets are for .

You are 100% correct I was looking at the wrong list of codes, (JimF's page dose not tell you what cars the codes are for) I have made this mistake once before. Can I ask you where you found your codes. As for the water I had just washed the car but I did not wash the motor. Ill check out the ignition system.
Thanks
Subman

__________________
Factory trained Mercedes-Benz Technician
Look At My Website
-2002 C32
(E420 has passed away)
The best way to contat me is e-mail.

I have codes from various places. If you email me . I will send the led/sw codes in jpg to you.

The codes for your car are slightly different in that you have the led/sw N/59 set up and the 94/95 E320 is both HFM EFI and
dist.-less ignition.

One niceity of the 16 socket box is that if you make your own led/sw set up [ see my archieves post ], you can enter the other sockets and get to the specifics....
Those code are completely different than the ck/eng built in led you are addressing.
The basic purpose of that led is to monitor ANY malfunction that will directly effect the performance of the Emmission system.
So when a mechanic want to know if your car will pass an
emmisison test, he just has to see if he gets a single flash....
if not, you are under arrest...