DME Interchangability
 

Searching didn't bring up anything. So my question is can a DME from a manual car be put in an automatic trans car and visa versa?


My daughter's car is throwing a bad MAF code. After some checks, the MAF is not getting any ground. If grounded, car runs beautifully, idles a bit high but I think its because its not receiving the pulse from the DME. The wiring rings out fine, so there are no breaks in the harness.

So, I have 2 spare DMEs lying around but they are both from a 5 speed. Do you think any harm will come from using the 5 speed DME on an automatic car?

DME 1 is a 10/95 from my clubsport
DME 2 is a 05/95

Kasandra's DME is a 07/95

doesnt the dme control the shift points in an automatic car?

The TCU controls the trans, with data from the DME.

Installing them shouldn't let the engine run due to ews2. You'll need a purple label m42 dme with ews0. Otherwise, yes you can install a dme from any matching chassis to the next whether it's auto or manual

You were right Tony. The car would not start with the dme's.

Never heard of a purple label or ews0....

I thought they would work being all m42 dme's. Part numbers all match with the last three being 282.

Anyone have a purple label for sale?

60 SHIPPED. I HAVE ONE. The purple label EWS0 for the m42 is just like a red label m50 dme, you can install it on any e36.

Has it ever been opened? I guess I'll take it. Hopefully it solves the problem. Pm me your PayPal info.

Never been opened, stock dme, stock chip.

282 is the mid to late MY95 DME that was used for the cars that were starting to get some of the 96 type upgrades. There are some EWS issues with this DME, but it isn't the same as the 96 DME's where the EWS codes in the tune must match the EWS control unit.

it is also the DME that seems to give people the most trouble trying to get it tuned properly.

I'm able to move stock chips in and out of my 282 DME along with properly done aftermarket chips without worrying about EWS issues. I can also swap two different 282 DMEs in my car, and have no startup issues.

Still haven't had any one confirm if the dinan and turner chips for the 282 remove EWS, but they are not advertised as doing such and those can also be installed without worrying about EWS issues. Pretty sure the key has the match the EWS unit in these cars, and the DME doesn't really matter as long as it is a 282. No experience with swapping back to an earlier DME.

How I understand it: The 282 can have a EWS delete chip put in it or you can do the 1 wire cut and put any DME in a EWS-I car. 1996+ is the year you will need a EWS simulator or it won't start unless everything matches and is alligned. I know EWS-II very well so I think you can run any of your DME's with a chip or 1-wire cut to disable EWS. Only my thoughts

[QUOTE] Yes is it the same and they both must match the EWS module

The only way to start a EWS equipt DME is to get a EWS delete chip, Original software version or EWS emulation device

With my delete chip there is no wire cutting at all for OBD1, It's a direct chip swap in.

Barrie, the odd thing is that I had three stock chips and they all started my car, I also have two different 282 DMEs and they both can be plugged in and start my car with any of the stock chips.

Dinan and turner chips can just be swapped in, but for a custom tune, I had to copy one of the stock chips using a burn2 before it would start properly. When I was using a willem, i don't think I ever got a good read from any chips. Probably just something wrong with that particular chip reader. Burn2 is so much nicer/easy to use.

Four tis and about 7 different dmes and engines, whether it's m42 or m44 they contain ews2 in a 318ti including early clubsport models. In order to use a stock dme as a replacement on an m42, it'd need to be flashed becaue of ews2 or an earlier e36 non-ti m42 dme must be used and the ews signal cut. That leaves you with 92, 93, and 94, not always the easiest to come by in the sale market but moreso at a junkyard of some sort. I've tried interchanging dmes numerous times and it works like a charm just like using red label dmes for swaps and ability to change the dme on the fly if needed. Otherwise, silver label to silver label never worked whether it was m42 or m44

I'm staying out of this but I know what will work. Tit for Tat we have multiple ways to disable the EWS on most cars. Even EWS-II can use a different DME if needed, it is easy.

John S

Barrie knows my car is weird in some way about EWS. My car has had random stalling/cut out issues where the fix for the problem doesn't make sense, replacing with identical off the shelf turner tune. Or it is the other way where it won't start most of the time, but sometimes randomly would and then run fantastic. I had a custom tune that worked fine for 12 months, and then every couple of times the car was running it would stall with no codes. I could have an EWS module issue as well since the way my car behaves seems to be against the way it was designed to work. But, since I haven't had any problems with it other than when trying to troubleshoot the issue in the last year or two i don't see it as a problem.. Probably should just cut the whole system out and be done with it.

And just to clarify, he should not be able to take the chip that is currently in the car, put it into another 282 DME and be able to start/run the car? I may be confused about the other bmw chips starting my car, but I definitely know I can swap to my spare DME with the original chip or a custom tune overlayed on that code and have zero issues.

Why don't you just put a EWS simulator on it and be done with the problems of EWS and run any DME you want or code EWS-Delete or not, Sim solves it all???

Simplest answer, time. Twin, 2.5 year olds.. I haven't touched the tuning in my car in over a year, still have minor fuel issues when DISA opens up, and the torque curve kind of stinks once DISA opens up. The main reason I wanted to really work with the cam timing from that other thread.

Haven't even driven the car farther than 40 feet since October. I would agree though, delete it in code and get a performance tune to boot, probably the easiest answer.. Wasn't trying to confuse the op or the original issue. If my info is bad because my car has some kind of strange info, just ignore me. :)

You have a bad tune. It should be strong and no difference when DISA opens. What DME are you running and tune?

I don't run a DISA and found it is excellent. BMW did the DISA to improve low RPM torque only. I would rather have all 4 of the intake open at all times, so important since with a clutch/manual we are always over the DISA opening at 3,500. Remove it and see how that motor wakes up.

John S

So help me understand this guys. I can either go with a purple label ecu/dme OR get an EWS delete chip for my 282?


So who makes an EWS delete chip and how much?

^

I have a ews delete chip for the 282 and it's $100

Ok, before I spend $100 on the chip, can I try the 1 wire snip? Which wire do I snip? pin 66 on the dme?


I also have a dinan chip D900-1933e which is for obd 1 m42, but I tried it out and it didn't work. I am assuming it doesn't delete ews...

Silver label = cant snip wires period.

you need a dme without ews or and ews delete chipped dme.

I don't know EWS-I very well but I think a chip or wire cut disables the EWS checks in all silver label OBD-I DME's, Barrie could answer this best for you. His personal DME he coded was a 282 so he knows a lot about that model. I'm really into OBD-II (667 & 668 DME's) EWS-II systems which are much harder to defeat

.

Best of luck, John S

A Bosch DME ending in 282 equipt with EWS requires a delete chip. Cuting wires will not work

cheers

Ive already tested this out, tis got ews2, even the early clubsports. Cutting the wire wont work. Thats why i said to rever to the 92-94 318 dme, you can cut the wire and install

My bad I hate giving bad information. Sorry about that folks

No worries John! I greatly appreciate EVERYONE'S input in the matter!! I'll go with the EWS chip that Barrie is offering. Hopefully I can get this sorted out on Kasandra's car and move on to other matters that need attention (cooling and suspension).

Thanks again guys!!

PM replyed Platanos

BTW you are a site supporter witch get's you 20% off my chips

:)

I have a ewsII 668 dme. So from what I understood from this post I can bypass the ewsII by getting a ews simulator? If this is the case, where can I get a simulator? Is it as simple as plug and play? Or do I have to mess with the dme and wires?

I have not installed a sim yet but it does involve taking apart the DME, soldering the chip in and programming it. Chip can be found online with a Google search.

I am in the same boat with a cali top Ti. It is a 97, going to get a earlier model m42 318 DME and snip and go from there. Sound about right or am I missing something?

I'm willing to install a EWS delete chip for free since I don't think anyone has done one on this board. You pay shipping both ways, purchase EWS sim. The big thing for anyone who wants me to try this on their DME, if I fubar your DME it's not my fault or responsibility.

I might try it on my own DME if someone makes a good offer to buy a EWS delete 668 DME. Yes I am parting my car out. Anyone need a M47 stroker crank and H-Beam rods. The stroke adds a lot of torque and the long H-Beam rods get a better angle on the crank to make more power.

EWS delete for 1995 DME's must be done via a EWS delete chip which I sell and is plug and play and all other DME's 96 and above must be done via a EWS emulator which requires a solder job .

Cheers

So i got a chip, put it in, still no spark or fuel. removed #66 wire and bypassed starter wires from ews2 . will a purple dme work? can i do any swap that will, including a wiring swap? i would like to drive this car before i paint it and custom build a wide body kit.