Originally Posted by ohlord
leak at the cam sensor located on the front of the head.
Erase the cel for the sec air malf.
See if it comes back.
Some of those wires for the system on the m104 are pretty intermingled so it could be the short or it could be coincidence as long as you don't have smog tests you can wait. Although with a cam sensor issue you probably are suffering from lower fuel mileage than you should be getting.
SDS time diagnostics maybe the only way to track it down for sure.
And you know how that pains me to even suggest
OK so I decided to get in and get dirty, so just to update, I found that the electrical "fire" was just a capacitor on the auto dimming board inside the rear view mirror. But during the removal of the mirror frame due to the Arizona sun the plastic is brittle and broken so I might have to plasti-weld it back on. (New assy from dealer is around $800). Then I tried to clear the codes and was able to clear the CEL, but the reader said that it was unable to clear the p410 and the p341.
So now my brain is in "think" mode. I have the ABS and the ETS errors on the display, the codes I am getting are p0410 and p0341. I have taken apart and checked all of the fuses that I could find (under the hood p.s. and drivers side by the firewall: drivers side panel interior: under the back seat behind the battery).
The p0410 is sec air injection system fault. And one of the possibilities is defective relay, wiring or fuse.
The p0341 is cam position sensor. And one of the possibilities is the sensor, or connector and wiring.
Problem is I can't get a good picture online of the sec air injection relay or a good pic of exactly where the can sensor is located. Admittedly I am not very proficient at the mechanics of an MB (always had chevys till now). Also I can find the cam sensor on autozone (pricey), but no luck finding the sec air injection relay or reasons why the reader won't clear the codes. I really want to fix this myself for more reasons than the cost, dammit I can do this (I think).
Any help would be greatly appreciated, thanks in advance.