325 NV

[POCti]

Getting closer to doing my swap and been notice alot of talk about the EWS. I have 92 325i NV motor wiring and ecu to go into my 96 ti will this cause any problems with the EWS or anything else for that matter.

[cooljess76]

Converting an OBDII car to OBDI is illegal. Get an engine from a '96 or newer car. The DME, the transponder chip inside the key and the EWS module behind the dash all have to match. By this, I mean they all have to be from the same car or you'll have to take it to a dealer to be re-aligned.

[POCti]

Dang it well atleast I asked before I started tearing into it

[POCti]

well other than legal issue which i will still obey the law if i was to swap my obd1 ecu and ect would there be an issue. now im just curious cause i would think for ews to effect anything i would have to keep the original ecu or any obd2 ecu.

[POCti]

And I just realize this law would only apply to street cars not track cars right

[Bloodrunsdry]

Should have no issues. A few wire mods need to be done on the cars body harness. You can find all that info in the engine swap section. Besides that, not much else needs to be done and NV would be very easy to get running

[cooljess76]

People still do these swaps even if they're not legal. What it boils down to is that you'd be bastardizing a car and rendering it worthless to anyone else. It pisses me off when I'm interested in a car and find out someone removed the cats, installed some garbage intake or rigged up some simulators and hacked up all the factory wiring. Same goes for the engine. What happens when someone tries to register the car and finds out that it can't be registered because it fails inspection due to an illegal engine swap. You end up getting sued and another ti ends up in a junkyard is what happens.

As for the EWS, you'd be surprised at how many people screw this up. There's a chip inside the key that needs to be swapped, a small EWS module behind the glove compartment and the ecu(DME). That's all, just those three things. They have to match, meaning they have to come from the same car. Not just the same make and model of car, but the same ACTUAL car. Where people get screwed up is because they used a wire harness from another car, or they swapped ignition cylinder and left their old antenna ring on the one they removed, or they swapped the EWS receiver under the steering column.

The other problem with running a '92 engine in a '96, I believe the '92 is EWS1 and the '96 is EWS2. So then you end up having to snip harness wires to bypass it.

[POCti]

Thanks blood and cooljess I will look into it more. And cooljess I agree with you one people cutting up wiring and half assing stuff im still dealing with problems from my DD that someone did that too. I prolly wont do this if im going to have to cut up some wiring I was really hoping it would be a plug and play since i had already bought to motor and have spent money on it to freshen it up. As far as ruining it for someone else and this getting sent to a junk yard well i wont be selling it ill total it before i let it go. I hope i dont do that now thou knock on wood. Also Oklahoma doesnt do any kind of inspections unless a totaled car being rebuilt then they check lights and tires at tag office.