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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > DME Pins - Removed DP Fix - Need Help



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      10-07-2013, 02:53 AM   #1
mapleridge
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DME Pins - Removed DP Fix - Need Help

First of all, the dp fix doesn't work for our cars if you are thinking of deleting your main cats. There was some mix up as I guess BMS made a run for somebody, (Maybe MMW).

After months of trying to configure it I finally removed it last night. I believe I may have inserted the wires in the wrong pin numbers. The DP fix says that the two yellow wires that get removed should be different. One with writing on it and the other without. Both yellow wires for me have writing on it.

Is anyone able to check or provide a picture of the wiring and markings on pins 14 through I believe 26 where the DP fix would plug in on the n52. I am getting the following codes and reduced engine power with the associated CEL.

2CF9,1,Throttle-valve potentiometer 1
2CFA,2,Throttle-valve potentiometer 2
2D09,4,Throttle valve

The DP fix was messing with the car big time. Even at reduced power with these codes the car drives 10 times smoother. Moral of the story. No viable software related plug in fix is available that I know of. I have some mini cat mechanical fixes I am going to install. Hopefully that works.
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      10-07-2013, 08:37 PM   #2
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I am stuck at work now and the car won't start. Is there anyone who can check their DME pins on the small black connector. I will pay you $25.
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      10-07-2013, 09:52 PM   #3
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where do you find that at?
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      10-08-2013, 12:56 AM   #4
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I had a friend go through his dme and the yellow wires on the connector were supposed to go into 19 and 20 just like the n54 but my car still wouldn't turn on. A mechanic friend of mine said that I probably flooded the engine trying to crank it so many times. Is that possible? I had to leave my car at work.
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      10-08-2013, 04:55 AM   #5
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Sorry that happened to your car man...that's terrible. I just left my dp fix in there and turned it to the off position because I was afraid of this situation.
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      10-08-2013, 08:20 AM   #6
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The initial problem with the codes wasn't a big deal. I just had to have the car re learn the throttle I believe. 3 pins are removed for the dp fix. two yellow and one black/red. Black/red goes back into 23 it is the ground for the sensors. the two yellow go back into 19 and 20. They are the rear o2 sensors. I should not have gone back into the dme thinking the pins were wrong. Now I have a bigger issue that I can't figure out.

I have all the pins right now but it won't start. I was told the engine is probably flooded but from some reading it doesn't look possible. I thought battery but a jump wouldn't start it. Now I am going to try unhooking the IBS to see if it cranks. Running out of things to check. Might have to tow to the dealership but I want to avoid that.
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      10-08-2013, 10:00 AM   #7
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these are the codes now

DME,DME Number: 07602220
2A31,4,Valvetronic, eccentric shaft sensor: guide
2A32,4,Valvetronic, eccentric shaft sensor: reference
2CF9,1,Throttle-valve potentiometer 1
2CFA,2,Throttle-valve potentiometer 2
2A47,8,Valvetronic, eccentric shaft sensor: plausibility
2D09,4,Throttle valve
2A85,4,Exhaust VANOS, activation
2AA9,4,Variable intake system, servomotor 2: activation
2A9A,1,Camshaft sensor, inlet, signal
2E84,4,Electric coolant pump, communication
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      10-08-2013, 12:30 PM   #8
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I took mine off like a month ago and was able to prove that the car runs faster with the bms removed or on the off position. Never playing with that again. Hope your car starts soon.
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      10-08-2013, 01:21 PM   #9
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Its at the dealer now. They should diagnose by late evening today or morning tomorrow. I hope its just the battery but a jump didn't do it. Maybe just maybe, its the pins on the DME, but they all looked straight. I hope the bill isn't this big. I should have just done the gas pedal procedure for relearning throttle and called it a day. I didn't need to go back into the dme a second time after removing the fix.
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      10-08-2013, 03:10 PM   #10
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Ok. So aside from the throttle codes which should be from not relearning throttle. The rest of the errors look like they are from the same connectors. It is referred to as X60007 in the bentley book. The only one I can't figure out is

2AA9,4,Variable intake system, servomotor 2: activation

is that the intake vanos solenoid?

if so, that is also on the same connector. This makes me think the pins are bent.


** edit. Per bentley manual 2AA9 is a code related to DISA. It looks like it could be a different connector for that one code.....:S

Last edited by mapleridge; 10-08-2013 at 04:04 PM.
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      10-08-2013, 10:09 PM   #11
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Hold on.

Looking at the connectors on the DME and matching the codes to the pins I think were affecting, point to a connector I never unhooked even once.

The connector A-C is one unit and I only removed B to install/uninstall the dp fix. From the codes I pulled most of the signals come from G and the throttle codes come from E. I don't see how I could have messed those up.



Here is the pic of the connector where I can trace most of the error codes to.


Last edited by mapleridge; 10-08-2013 at 10:15 PM.
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      10-09-2013, 10:08 PM   #12
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anyone paying attention, it was the dme connector. Dealer called me and said they plugged it in and everything worked.
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      10-10-2013, 08:31 AM   #13
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Glad to hear it was a small problem.
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      10-10-2013, 10:34 AM   #14
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Phew!! i know you must be relieved.
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      10-11-2013, 09:39 AM   #15
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Quote:
Originally Posted by Modded328FTW View Post
Glad to hear it was a small problem.
Quote:
Originally Posted by gingerbreadman View Post
Phew!! i know you must be relieved.
Thanks Guys. I am relieved.
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