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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E36 (1991 - 1999)

E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 02-21-2013, 06:15 PM
fickett325 fickett325 is offline
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E36 obd1 obd2 conversion

I have a 93 325is with a s50 block and m50 head i need a obd2 conversion for my wiring harness does anyone have any information on obd1 to obd2 swap sensors,computers diagrams etc. please help
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  #2  
Old 02-21-2013, 08:19 PM
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drivinfaster drivinfaster is offline
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what?? iirc the part numbers for the heads are the same....

and i thought s50 *was* obd1....why do you need to go obd2 on a 93??


i'd get the right tune for the s50 and then should be just plug-n-play, no??

there's a thread about 'how bmw's are like legos'. think it's in one of the stickies...

but i am sure more will chime in on this subject....




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  #3  
Old 02-22-2013, 07:56 AM
Fazda Fazda is offline
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Also curious as to why you need to go obd2. Generally making an m/s52 obd1 to use in an obd1 car is common and its a painful process for a first timer. But going the other direction, why??
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Old 02-22-2013, 08:01 AM
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ZeGerman ZeGerman is offline
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I don't know why you'd ever want to waste your time refitting a car from OBD1 to OBD2.

OP, your car was OBD1 from the factory, and has an OBD1 engine installed. Why do you want to switch to OBD2?
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Old 02-22-2013, 01:46 PM
fickett325 fickett325 is offline
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because its turboed already it was a hack job so im trying to fix it hence obd2
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Old 02-22-2013, 02:13 PM
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ZeGerman ZeGerman is offline
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Quote:
Originally Posted by fickett325 View Post
because its turboed already it was a hack job so im trying to fix it hence obd2
Hence OBD2? How? If it's hacked up, just replace the hacked up OBD1 parts with OBD1 parts that are not hacked up. Much easier.

Quote:
Originally Posted by Bimmer1995318ti View Post
How do I know what my e36 is?
All cars sold in the US from 1996 onward are OBD2. Anything before that year (including your '95) is OBD1.
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Last edited by ZeGerman; 02-22-2013 at 02:14 PM.
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Old 02-22-2013, 01:52 PM
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Bimmer1995318ti Bimmer1995318ti is offline
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How do I know what my e36 is?
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Old 02-22-2013, 03:48 PM
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Bimmer1995318ti Bimmer1995318ti is offline
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Quote:
Originally Posted by ZeGerman View Post
Hence OBD2? How? If it's hacked up, just replace the hacked up OBD1 parts with OBD1 parts that are not hacked up. Much easier.



All cars sold in the US from 1996 onward are OBD2. Anything before that year (including your '95) is OBD1.
Thanks mate !!
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  #9  
Old 02-22-2013, 07:43 PM
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drivinfaster drivinfaster is offline
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for clarity, anything designated a 96 model year (can have a x/95 production date....) is an obd2 compliant vehicle.

it should also state this on the emissions placard under the hood where the engine displacement and emissions information is posted.


and i agree with karl. if it was hacked, it's best to simply put it back together un-hacked and keep it obd1.



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