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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 07-26-2014, 10:45 PM
bimmerphilster bimmerphilster is offline
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Location: Nebraska
 
Join Date: Feb 2011
Posts: 43
Mein Auto: 1985 BMW 325e 2.7L
Electrical Connections

Hi Gentlemen, It's been sometime since I posted and have worked on my 85 325e I am restoring due to my battle with Hep C. Now that I am well again I have started working on the sled again. After 2 years of sitting in the garage, I pulled her out, dusted her off and she fired right up, a little rough at first but I got that all smoothed out. While under the hood I found 2 wires going to nothing, sigh, and after 2 years I can not figure out where the hell they go. I have pics for all to see and maybe help me figure this out.
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One wire was laying up front in the engine bay next to the air cleaner. The wire is in the same harness as the wiring for the MAF Sensor.

The other wire is in the same harness as the fuel injectors and wiring for the coolant temp sensor. It is a very long single wire with a spade connector. It ran up front of the engine and back down the passenger side of the engine bay. Any Thoughts or ideas would be appreciated
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  #2  
Old 07-27-2014, 10:19 AM
sjones0812 sjones0812 is offline
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Location: Boston
 
Join Date: Feb 2011
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Mein Auto: 1995 318ic
Maybe ambient temp sensor on one near the air cleaner....mine looks different, but I found my sensor missing and picked up a sensor and plugged it in and now my OBC displays the temp.

Maybe a wider photo will help locate these wires better.
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1995 318ic retired
2011 328ic Le Mans Blue, Black leather, Bamboo trim, M Sport package
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  #3  
Old 07-27-2014, 10:46 PM
bimmerphilster bimmerphilster is offline
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Location: Nebraska
 
Join Date: Feb 2011
Posts: 43
Mein Auto: 1985 BMW 325e 2.7L
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  #4  
Old 07-29-2014, 08:45 PM
bimmerphilster bimmerphilster is offline
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Location: Nebraska
 
Join Date: Feb 2011
Posts: 43
Mein Auto: 1985 BMW 325e 2.7L
I figured out where the connector next to the air cleaner goes. It connects to the missing barometric pressure sensor. Used the Electrical trouble shooting manual to find that one. One more to go, the long single wire with a spade connector. I am starting to believe maybe the A/C compressor since it was never working when I bought it, maybe. Will look tomorrow as it's late and the ol lady is bitching about me being out late???? Really
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  #5  
Old 08-04-2014, 02:39 PM
JustJenni JustJenni is offline
Jenni
Location: Glendora, CA
 
Join Date: Jul 2014
Posts: 4
Mein Auto: BMW
Looks to me like it may be the oil pressure sensor. If not I will do more digging for you. I work at a BMW shop so I can always find the answers. We work on E30's a ton. Hope I helped!
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  #6  
Old 08-05-2014, 09:51 PM
bimmerphilster bimmerphilster is offline
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Location: Nebraska
 
Join Date: Feb 2011
Posts: 43
Mein Auto: 1985 BMW 325e 2.7L
I think you might be right,will check that in the morning,thanks Jenni
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  #7  
Old 08-06-2014, 01:45 PM
JustJenni JustJenni is offline
Jenni
Location: Glendora, CA
 
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No problem at all! Hope everything works out for you. Good Luck!
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  #8  
Old 08-06-2014, 11:52 PM
bimmerphilster bimmerphilster is offline
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Location: Nebraska
 
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Mein Auto: 1985 BMW 325e 2.7L
That is exactly what that wire connected to, thanx
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