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15180 Views 21 Replies 6 Participants Last post by  kevenj
OK I was playing in the car all day on the audio system. I had the negative battery terminal off and back on twice, and I removed the factory amplifier and the 2 black plastic harnesses that attach to the black part on the amp (part reads Siemens).

I put the black part (Siemens) back under the dash, with the harnesses back in place.

Since then I am getting the Engine light on during start, and if I am reading the system correctly (it goes like this: DOOR AJAR, then it is showing OIL PRESSURE 19 PSI (then when you hit the gas the oil pressure reading increases) and then it scrolls to giving the reading of the oil temp as well. I assume these are Codes saying probs possibly with the OIL Pressure or Temp?

Car was running a little hot I though, last night it was running 225 deg after like 5 min of idle. Then it came down to 212-214 after driving a short distance...

Did I mess something up by removing the 2 wire harnesses attached to the black device on the amp (by the way this item I do not think had any connection to the audio as far as I know it was simply attacched to the amp by 2 screws). Or is this a problem that will need to be addressed by the dealer?
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The fact you hit the gas and OP increases is a clue the system is working (how accurately is anyone's guess). I know several folks have had a CEL come on after various mods but TMK never a low OP reading. These CELs have generally gone off after a day or two. You may have triggered the light but certainly did not cause low OP. I would have it checked and be very careful on the sequence of events as to how this happened, DC is just itching to void warranties. I am not suggesting you lie but no point in giving a lot of info they don't need, your low OP needs to be addressed. They should check with an external OP guage to see if it is low, I imagine a device like this exists and I am sure they have never heard of one. Gluck.
My old 300E would drop to near 0 at idle. Your problem is you have a low OP warning showing up, not just a CEL. Maybe a fluke and if 19 is indeed not low then give a few days and allow it to re boot.
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