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-   -   Converting to OBD I with an auto harness (http://www.maxbimmer.com/forums/showthread.php?t=156107)

matty.dc 03-01-2013 05:53 PM

Converting to OBD I with an auto harness
 
Hi guys,

I've bee reading post after post and I'm getting a mixed response when I look for answers regarding the auto harness. Does anything need to be modified in the harness/any wires connected to allow it to function in a manual car? I'm using a chipped red label 413 and a harness from a 93/94 325is. It's going on a 97 s52.

Thanks

Matt

e30_kid89 03-01-2013 06:51 PM

Get an ETM, look up the colors and make the cuts at the splice points. If it's done right, it'll function and look 99.999% like a manual harness.

matty.dc 03-03-2013 03:39 PM

For others seeking this information:

In the auto wire loom that goes down to the trans, there is a brown/black wire (brown wire/black stripe). This wire has to be grounded. This wire grounds the starter relay (86pin) as if the car was in park or neutral. You can also do this right at the trans module plug, as it is the same colour and comes out of pin 26 on the trans module plug.

cormier 03-03-2013 06:10 PM

Hmm.. I remember reading this somewhere but my motor fired just fine without this modification!

e30_kid89 03-04-2013 09:05 AM

Quote:

Originally Posted by cormier (Post 1600420)
Hmm.. I remember reading this somewhere but my motor fired just fine without this modification!

x2.....I've deleted all the auto wiring without having to do that on two different harnesses.

dcramer 03-04-2013 09:11 AM

what do you do about drive clean with an ODB1 conversion ?

e30_kid89 03-05-2013 05:34 PM

Quote:

Originally Posted by dcramer (Post 1600479)
what do you do about drive clean with an ODB1 conversion ?

Nothing. :)

matty.dc 03-05-2013 06:00 PM

I have an 87 so I'm exempt :)

cormier 03-05-2013 09:42 PM

Quote:

Originally Posted by matty.dc (Post 1600621)
I have an 87 so I'm exempt :)

Dope. How's the rest of the build going?

dcramer 03-05-2013 09:49 PM

anyone with an S54 transplant ? emissions will be harder as the VIN's won't match

cormier 03-06-2013 06:49 AM

Quote:

Originally Posted by dcramer (Post 1600653)
anyone with an S54 transplant ? emissions will be harder as the VIN's won't match

True, I don't think anyone is running obd1 s54s though

dcramer 03-06-2013 06:50 AM

Clearly, I posted in the wrong place.... I'll start a new thread

matty.dc 03-06-2013 03:45 PM

Quote:

Originally Posted by cormier (Post 1600652)
Dope. How's the rest of the build going?

The motor is all together. I just have to pull the M50 out and drop the S52 in :)


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