Disabling/bypassing The Ews - BMW Forum

wctouring7 · 02-21-2005, 09:33 AM

I need some help, I have a 95ti that I just did a M44 engine conversion in and I want to bypass or disable the EWS to get it running. I rather not have to drag it to the dealer to get the EWS "aligned" until after I get it going and work the bugs out.
Thanks for any help.

jrhaile · 02-21-2005, 12:35 PM

hah! if there was a way around this, I would have had my car 3 weeks ago! Sorry bud, but you're stuck. You need to get it "aligned". Question though, why didn't you use your stock wiring harness?

jllphan · 02-21-2005, 12:46 PM

huh? Bypassing EWS is simple as pie. All you have to do is cut the green wire (#7) under one of the two DIN plugs. Give me a sec, I'll draw you a diagram.

1. Unscrew this termninal
2. Peel off the rubber boot on top of the DIN plug.
3. Clip the solid green wire (Labled #7)
4. You're all good!

jrhaile · 02-21-2005, 01:14 PM

ok wtf man.. where were you when my EWS intitially took a crap? So I could have bypassed my system to get my car started 3 weeks ago? now I'm really pissed off.

jllphan · 02-21-2005, 01:23 PM

sorry dude. You know you can PM me with any questions: engine swaps, picking up girls, time travel....

jrhaile · 02-21-2005, 01:24 PM

so my EWS system was the cause of my car not being able to start Les and I found out. So by cutting this wire, this would have bypassed all of this hassle?

jllphan · 02-21-2005, 01:28 PM

As far as I know. When I added software to my car, I had to disable EWS or my car wouldn't start, Active Autowerke was nice enough to include a diagram on disabling my EWS so that it would.

Did you start a thread on this, if so, how did I miss it? I always try to answer your posts.

jrhaile · 02-21-2005, 01:30 PM

man that thread was 3 weeks ago now... been dealing with this problem since. I had to get a whole new EWS system with all the keys for 250 bucks and then an ignition tumbler made to fit the new keys because BMW is retarded and cut the original keys incorrectly.

so my symptom was my car would click and no spark or anything. finally narrowed it down to the EWS system not having any output from the EWS module. So you're saying FOR SURE that by cutting that greenwire, that would have bypassed getting a new EWS system? This is very important to me now :P

sorry for hijacking this thread btw

jrhaile · 02-21-2005, 01:33 PM

http://www.bmw-forums.com/forum/index.php?...opic=30987&st=0

that was the thread... I haven't had my car for nearly 3 weeks now

jllphan · 02-21-2005, 01:35 PM

well now, hang on. It wouldn't even crank? My car would crank but not turn over.

I've been spending a lot of time at the dyno lately, and have tried out several chips during these trips (including my oem chip- had to try a few things). Point is, when I went back to my oem chip, I had to reactivate my EWS system. Then when I would go back to the AA chip, I had to disconnect it again. I forgot to disconnect it, got in my car and the car would crank, but not turn over. Discconnected the green wire, and the car started fine.

So if you're car just clicked, and wouldn't even crank, it could be something else. But the way I understand it (conversations with Active, and several posts on Bimmerforums), is that cutting the green #7 lead is what disables EWS.

jrhaile · 02-21-2005, 01:37 PM

yeah I had no crank, just a click. Weird....

jrhaile · 02-21-2005, 01:38 PM

oh and I could get crank if I used remote staters hooked to my starter and battery port

jllphan · 02-21-2005, 01:54 PM

Honestly, it sounds like more is at play than EWS. I'm no expert, but with your symptoms I would have thought it was your starter. But then you say it would crank with the remote. That's the problem with all your crap (mine too) there are so many variables, you don't know where to start. Tranny swap, OBDII-OBDI conversion, aftermarket alarm with starter kill; it's like you donn't know where to start.

So if your car would turn over, but only with your alarm's remote (I'm guessing you have remote start, right?), then I guess it isn't your starter.

If I'm still right thus far (tell me where I didn't read something right), then I would try to disable your alarm and see what happens. Most decent aftermarket alarms have a starter kill circuit, and that's what this sounds like.

Now if you disable your alarm (starter kill is off) and your car would then crank but not turn over (with the key), then I would say it's the EWS system. Then, my advice above would be of help.

Sound right?

jrhaile · 02-21-2005, 01:57 PM

I don't have a remote starter, probably wrong use of words. We had a device that we HOOKED to the starter and the battery and then pushed a button and it would crank.

We did disable the alarm from what I remember and still nothing. So we'll see. My car should be working today and if it's not, then I'm lost.

jllphan · 02-21-2005, 02:08 PM

So yeah dude, sounds like it may have been EWS afterall. If you could disable your alarm, and it would crank but not turn over, then I guess EWS is what was preventing your car from starting. But could you use your key to get it to turn over, or just that remote connection thingy?

Oh well, hope your car works today. If not lemme know, I'll fix it :P