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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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#1 (permalink) Old 04-12-2011, 07:49 PM
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Dme

I have read online about VW, audi and porsche having the motronic ecu (dme) that bmw has. Is that true, and if so are the interchangeable?
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#2 (permalink) Old 04-12-2011, 07:59 PM
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Negative........as a matter of fact BMW dme's are not interchangeable with other BMW dme's, they would have to be reprogrammed by BMW or a reputable shop!


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#3 (permalink) Old 04-12-2011, 08:05 PM
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Thanks for the response. My buddy is a bmw mechanic, so that helps lol. I have a 93 325i and it started misfiring. So after checking plugs and wires/coils, i stuck a noid light into each injector harness. Injectors 2 and 4 are not receiving any signal.
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#4 (permalink) Old 04-12-2011, 08:13 PM
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Originally Posted by d94ware View Post
Thanks for the response. My buddy is a bmw mechanic, so that helps lol. I have a 93 325i and it started misfiring. So after checking plugs and wires/coils, i stuck a noid light into each injector harness. Injectors 2 and 4 are not receiving any signal.
You should check & see if the DME got wet, it is located behind the passenger side of the engine bay, sometimes they get wet due to leave & debris build up in the drain area's above........sometimes just drying the DME out, WORKS!


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#5 (permalink) Old 04-12-2011, 08:15 PM
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I pulled it out, it wasn't wet. No corrosion either.
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#6 (permalink) Old 04-12-2011, 08:21 PM
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I pulled it out, it wasn't wet. No corrosion either.
Oh.....ok, & you are sure that the 2 & 4 injectors are not distributing fuel?

Have you tried disabling the ignition & pulling the fuel rail up & turning the engine to check each injector?

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#7 (permalink) Old 04-12-2011, 08:24 PM
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Didn't disable the ignition, took the rail off all injectors for access to the harness's. One by one i put the noid light in and had a friend crank it.
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#8 (permalink) Old 04-12-2011, 08:35 PM
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Didn't disable the ignition, took the rail off all injectors for access to the harness's. One by one i put the noid light in and had a friend crank it.
question, have you checked the # 2 & # 4 ignition coils to see if they are firing?

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#9 (permalink) Old 04-12-2011, 08:39 PM
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Checked all plugs, wires/coils with spark tester. All lit up.
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#10 (permalink) Old 04-12-2011, 08:44 PM
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Checked all plugs, wires/coils with spark tester. All lit up.
oh....ok.....because they look like they work together, the wiring from the ignition, runs into the injector harness, maybe some type of ground issue, but definitely could be a DME issue.......good luck & keep us posted when you sought this out.....





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#11 (permalink) Old 04-12-2011, 08:53 PM
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I just got this car a month ago lol. Ugh.......One way or another I'll get it straight. I will post the solution, for any of those with the same issue. Thanks for the responses, greatly appreciated.

Dan.
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#12 (permalink) Old 04-12-2011, 08:57 PM
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I just got this car a month ago lol. Ugh.......One way or another I'll get it straight. I will post the solution, for any of those with the same issue. Thanks for the responses, greatly appreciated.

Dan.
You are welcome, Dan..........anytime!




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#13 (permalink) Old 04-12-2011, 09:00 PM
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Quick thought, why couldn't i swap it out with the same bosch 3.3.1 261 200 413? I mean if need be, i could swap the chips to. I have no ews, and my chip isn't soldered down.
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#14 (permalink) Old 04-12-2011, 09:07 PM
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Quick thought, why couldn't i swap it out with the same bosch 3.3.1 261 200 413? I mean if need be, i could swap the chips to. I have no ews, and my chip isn't soldered down.
You might be able to do that, but in my experiences on the forums, from what I heard & read, each DME is programmed to each individual vin numbered vehicle & that is why it has to be reprogrammed.........

But......you can call TMS Turner Motorsports they will definitely give you an answer.........

Turner Motorsport | BMW Performance Parts, OEM BMW Parts & BMW Accessories


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#15 (permalink) Old 04-12-2011, 09:18 PM
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Thank you again oh knowledgeable one! lol. Foreign isn't my expertise, american is my thing. I have read A LOT, on other forums and random pages that you can swap with a multitude of different bmw's. I have no clue as this is a first for me, and to be honest, I have read somethings on this site and was hoping you would respond to me. Matter a fact,

list of ECU of all BMW

Pelican Technical Article: BMW DME Motronic ECU Swap / Repair

Check those out if ya want to, just two of the....I don't know, main pages i found if you wanna call it that lol.
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