 » Site Navigation | | | | » Recent Threads | | | |  |  |  | |  11-28-2006, 08:06 PM | #1 | | Senior Member Join Date: Jan 2006 Location: Cincinnati Posts: 890 |  2.5 Swap Trouble
I've run into problems with my 2.5 M50 swap. Here's the story, I got ahold of a 1992 M50, complete with all of its accessories, wiring harness, DME, radiator, exhaust and other goodies. All is currently installed in my 7/95 build date ti. The engine turns over fine, but won't start. Upon further investigation, I have ZERO fuel pressure and ZERO ignition spark. I had read a couple threads that indicate that ODB-I cars were not equipped with EWS: http://www.318ti.org/forum/showthread.php?t=5505 http://www.318ti.org/forum/showthread.php?t=3045 ... however I find myself with exact EWS symptoms. In doing more research, I have found that DMEs with a burgandy label are EWS1, and DMEs with silver labels are EWS2. EWS2 is the type that needs aligned by the dealer. Since my original DME had a silver label, it makes sense that the EWS doesn't get a good return from the burgandy DME and has shut down the fuel pump and ignition. I transported the ti to the local dealer, and explained my entire ordeal. I suspected I was talking way over the service manager's head about all this, but he assured me he knew what I was talking about. Today he calls and says they determined the DME was receiving + & - currents incorrectly. This was switched. They then said they need another 4 hours of labor to dig into other wiring harness issues. Does this sound right??? I told him it probably needed an newer DME, and be aligned properly to start-up. I'm really confused as to why they are hacking up my wiring harness.. __________________
SOLD!!! 1999 332ti //M Sport Titanium Silver
M3 S52 3.2 I-6 Engine, M3 Clutch w/ ti Getrag Trans, Z3 3.15 LSD medium case diff and half shafts, OEM Hatch Spoiler, Eurosport HP Underdrive Pulleys, FDM, 17" DS1 rims, M3 Front Struts & Springs, M3 Instrument Cluster, 3-spoke //M steering wheel with tri-color stitching, SSK, CCFL Angels in Depo projectors with 5k HIDs |  |  | | 11-28-2006, 08:37 PM | #2 | | Senior Member Join Date: Jun 2003 Location: Saint Paul, MN Posts: 3,244 |
I am also in Cinci- what dealer did you go to? I have my car at Just BMW on Red Bank road right now. John is a very highly regarded & experienced mech if you need a second opinion. __________________
My Former Rides
1999 318ti Alpine White, Cali Roof, Dinan goodies
1996 318ti Hellrot California Edition
| | | | | 11-28-2006, 09:13 PM | #3 | | Senior Member Join Date: Jan 2006 Location: Cincinnati Posts: 890 |
Its up at Tri-County right now. I do like the Red Bank guys better, but Tri-County is much closer to my house.
Have you ever dealt with those guys? __________________
SOLD!!! 1999 332ti //M Sport Titanium Silver
M3 S52 3.2 I-6 Engine, M3 Clutch w/ ti Getrag Trans, Z3 3.15 LSD medium case diff and half shafts, OEM Hatch Spoiler, Eurosport HP Underdrive Pulleys, FDM, 17" DS1 rims, M3 Front Struts & Springs, M3 Instrument Cluster, 3-spoke //M steering wheel with tri-color stitching, SSK, CCFL Angels in Depo projectors with 5k HIDs | | | | | 11-28-2006, 09:15 PM | #4 | | Senior Member Join Date: Aug 2006 Location: Central NJ Posts: 2,440 |
What about getting a 1996+ DME + keys? | | | | | 11-28-2006, 09:22 PM | #5 | | Senior Member Join Date: Feb 2004 Location: Port St. Johns, Florida Posts: 2,242 |
how was everything else swap-wise? Since I am looking at 94/95 M50B25Tu as the future power-source for the Club Sport. | | | | | 11-28-2006, 09:25 PM | #6 | | Senior Member Join Date: Jan 2006 Location: Cincinnati Posts: 890 |
I suppose that would be possible, but I'm really curious if ODB-II effects the EWS system at all. If so, I need the EWS, Locks and Keys from a 1995, that is ODB-I, yet EWS2.
My head hurts. __________________
SOLD!!! 1999 332ti //M Sport Titanium Silver
M3 S52 3.2 I-6 Engine, M3 Clutch w/ ti Getrag Trans, Z3 3.15 LSD medium case diff and half shafts, OEM Hatch Spoiler, Eurosport HP Underdrive Pulleys, FDM, 17" DS1 rims, M3 Front Struts & Springs, M3 Instrument Cluster, 3-spoke //M steering wheel with tri-color stitching, SSK, CCFL Angels in Depo projectors with 5k HIDs | | | | | 11-28-2006, 10:41 PM | #7 | | Senior Member Join Date: Feb 2004 Location: Port St. Johns, Florida Posts: 2,242 |
well keep us up to date on details. | | | | | 11-29-2006, 02:02 PM | #8 | | Moderator Join Date: Jun 2003 Location: Bouncing off the rev limiter in CT! Posts: 3,156 |
Quote: Originally Posted by campaiar  I'm really confused as to why they are hacking up my wiring harness.. | You answered your own question... What made you think that you could use such an early harness in the car with no issues at all? In my manual I strongly suggest the engine/harness/car all be the same model year to avoid such problems. That is not to say it can't be done; however these type of problems do crop up when you try to cross years, particularly if your model year spacing is very wide. I also suspect they are milking a few extra hours out of you for the trouble.  You know that old mechanics saying: $20.00 per hour to fix it. $40.00 per hour if you tried to fix it first. If you make it easy for them, they make it less expensive for you. Hot-rodding a BMW is not like hot-rodding a chevy... | | | | | 11-29-2006, 02:35 PM | #9 | | Senior Member Join Date: Jan 2006 Location: Cincinnati Posts: 890 |
Quote: Originally Posted by Panzer_M how was everything else swap-wise? Since I am looking at 94/95 M50B25Tu as the future power-source for the Club Sport. | As far as everything physically fitting together, there were no issues at all. I purchased several items ahead of time using J!m's manual, and all were correct for the setup. I had the old stuff out, and the new stuff in and ready (aside from the exhaust) in 3 days. I have done engine swaps before though, and I had already converted the car from an auto to manual, so I knew how most of it came apart. __________________
SOLD!!! 1999 332ti //M Sport Titanium Silver
M3 S52 3.2 I-6 Engine, M3 Clutch w/ ti Getrag Trans, Z3 3.15 LSD medium case diff and half shafts, OEM Hatch Spoiler, Eurosport HP Underdrive Pulleys, FDM, 17" DS1 rims, M3 Front Struts & Springs, M3 Instrument Cluster, 3-spoke //M steering wheel with tri-color stitching, SSK, CCFL Angels in Depo projectors with 5k HIDs | | | | | 11-29-2006, 02:41 PM | #10 | | Senior Member Join Date: Jan 2006 Location: Cincinnati Posts: 890 |
Quote: Originally Posted by J!m What made you think that you could use such an early harness in the car with no issues at all? | I was going off of both cars being ODB-I. From the posts I listed and other forums I had researched, the EWS2 issue seemed to be directly tied to the ODB-II introduction. I know now that isn't true. I went for the earlier model because of price, availability of the other bits I knew I needed, and the ODB-I assumption above. Quote: Originally Posted by J!m Hot-rodding a BMW is not like hot-rodding a chevy... | This is definitely the most complicated (electronically) vehicle I've wrenched on. Course, my Bentley shows up today... figures...  __________________
SOLD!!! 1999 332ti //M Sport Titanium Silver
M3 S52 3.2 I-6 Engine, M3 Clutch w/ ti Getrag Trans, Z3 3.15 LSD medium case diff and half shafts, OEM Hatch Spoiler, Eurosport HP Underdrive Pulleys, FDM, 17" DS1 rims, M3 Front Struts & Springs, M3 Instrument Cluster, 3-spoke //M steering wheel with tri-color stitching, SSK, CCFL Angels in Depo projectors with 5k HIDs | | | | | 11-29-2006, 02:56 PM | #11 | | Senior Member Join Date: Jan 2006 Location: Cincinnati Posts: 890 |
Ok, so I went by the dealership on my way home last night, and found the ti to be sitting in the exact place I left it two days ago. So the whole thing about needing extra labor hours is probably bogus. The hood was opened, so I peeked under for a bit. Yep, that engine still looks sweet under there... Still rather silent, but it looks good. NOTHING was apart, or looked out of place at all. I began to get really curious. I headed in and talked to the service guy. He told me they have done all the diagnosis in the parking lot so far because it was a nice day, but they were going to get it back in the garage in a few minutes... Sure you were...  Anyhow, I told him to let me know how it goes. I stolled by it again on my way out, checking out the engine bay again before putting the hood down. An hour and a half later he calls and says its running. He indicated that not only was the DME + & - feeds backwards, so were the + & - leads going to the EWS component. I'm looking forward to examining my Bentley tonight when I get home to determine if that's indeed the case. I'm picking it up at lunch.. __________________
SOLD!!! 1999 332ti //M Sport Titanium Silver
M3 S52 3.2 I-6 Engine, M3 Clutch w/ ti Getrag Trans, Z3 3.15 LSD medium case diff and half shafts, OEM Hatch Spoiler, Eurosport HP Underdrive Pulleys, FDM, 17" DS1 rims, M3 Front Struts & Springs, M3 Instrument Cluster, 3-spoke //M steering wheel with tri-color stitching, SSK, CCFL Angels in Depo projectors with 5k HIDs | | | | | 11-29-2006, 02:58 PM | #12 | | Moderator Join Date: Jun 2003 Location: Bouncing off the rev limiter in CT! Posts: 3,156 |
well, now we all learn the cost of saving money...
Anyway, I'm glad you are making good progress. The early EWS problems you are having are news to me as well.
Brett at Koala Motorsports is a good resource for info on the earlier cars. He helped me out (somewhat) when I was doing my swap. He had not done an OBD-II swap yet when I was doing mine...
I'm not sure how much good the Bently manual will do you... | | | | | 11-29-2006, 03:05 PM | #13 | | Senior Member Join Date: Jan 2006 Location: Cincinnati Posts: 890 |
Quote: Originally Posted by J!m I'm not sure how much good the Bently manual will do you... | My understanding is the Bentley is E36 1992 through 1998, and contains all the wiring diagrams. If that's true, I should be able to tell that BMW swapped the locations of the + & - feeds to the DME and EWS sometime between 1992 and 1995. Or, I'll have so much fun actually driving the car home, that I won't care...  __________________
SOLD!!! 1999 332ti //M Sport Titanium Silver
M3 S52 3.2 I-6 Engine, M3 Clutch w/ ti Getrag Trans, Z3 3.15 LSD medium case diff and half shafts, OEM Hatch Spoiler, Eurosport HP Underdrive Pulleys, FDM, 17" DS1 rims, M3 Front Struts & Springs, M3 Instrument Cluster, 3-spoke //M steering wheel with tri-color stitching, SSK, CCFL Angels in Depo projectors with 5k HIDs | | | | | 11-29-2006, 03:07 PM | #14 | | Senior Member Join Date: Feb 2004 Location: Port St. Johns, Florida Posts: 2,242 |
Pics when it gets home.
How much did they get you for the service? | | | | | 11-29-2006, 03:10 PM | #15 | | Moderator Join Date: Jun 2003 Location: Bouncing off the rev limiter in CT! Posts: 3,156 |
More likely the latter. I used the Mitchell On Demand software for my swap, and did not get much use of it. I spent several days pulling rubber boots off harnesses and ohming-out wires at the ECU end and the round connector end (those few pages in the manual). THAT was a f'n nightmare... There are several that do not have labels on them in my manual. That's because I could not ohm them out, and the Mitchell manual did not explain them either...  Enjoy the ride! | | | | | |
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