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Join Date: Dec 2001
Location: SAN DIEGO
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Motronic Chip changing questions
Ok so I have a Euro 3.2 that I am getting to know before it goes into my early car. I bought the engine complete with the brain and harness. I noticed someone has opened the brain in the past so I was wondering if they changed the chip. I pulled it apart and it appears the main chip is fixed/soldered to the board. Shouldn't this be a plug in chip, ie removable?
Would it make a difference if it is a Euro brain? Can anyone tell me if this is the right ECU for a 86 Euro 3.2?  
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11-25-2004, 08:25 AM
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Location: Lac La Biche, Alberta, Canada
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Here ya go:
 Looks like a Euro stock chip. Chip codes all show manufacture date as second half of 1983. Tim
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1986 911 Cab 2008 Audi A6 Last edited by Tim Polzin; 11-25-2004 at 02:00 PM.. |
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11-25-2004, 09:43 AM
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Some of the earlier carreras had soldered chips. It is fairly common.
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Jerry '86 coupe gone but not forgotten Unlike women, a race car is an inanimate object. Therefore it must, eventually, respond to reason. |
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11-25-2004, 10:05 AM
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Nothing a bit of solder wick and a soldering Iron won't fix
 Make sure you fit a 24 pin socket in there, if you plan to use an aftermarket CHIP. It'll make it easier to swap in/out in future
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Merv '89 911 Turbo Cab Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition 
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11-25-2004, 01:53 PM
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cool, thanks. I will look for a 24 pin socket. I just wanted to make sure it was the right brain. I'd hate to have the worng ECU.
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11-26-2004, 07:46 PM
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The 051 DME is not setup for an O2 sensor. If you're in a state which has no emissions
issues or you're using the car as a track-only, then the O2 sensor in not a problem.
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Have Fun Loren Systems Consulting Automotive Electronics '88 911 3.2 '04 GSXR1000 '01 Ducati 996 '03 BMW BCR - Gone |
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11-26-2004, 08:22 PM
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Location: Long Island, N.Y.
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Will you get more power without the O2 sensor?
J.P. |
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11-26-2004, 09:23 PM
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1986 Porsche carrera coupe 3.2
