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Old 03-08-2010, 01:38 AM   #1
jakeb
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Default EWS questions

When did EWS come in to play? I am looking for a couple e36 m42s with auto trans for some swaps into older cars....1970s and want to make sure I get engines/wiring without EWS. Do any of the 95 cars have ews? I know the switch to the m44 was right around then and understand the m44 is obdII and has EWS-II.

I have done this swap with the e30 m42 and a 5 speed trans but never with the auto and I think starting with an e36 engine and harness would be best to integrate the auto trans.

Do all pre 96 cars have the m42 or did some have the m44?

Mostly I can figure out the wiring on any OBDI non EWS car. I think dealing with the EWS and OBDII will be a PITA and would like to stay away from it.
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Old 03-08-2010, 04:30 AM   #2
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the 96 model year was when they switched to the M44, I know my 95 has EWSI, not sure about when they started using it though
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Old 03-08-2010, 04:35 AM   #3
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excellent thanks

I think I may have figured out what I need to do. After reading the ETK a bit and comparing the 93 vs the 95 it looks like I can just use a late 93 dme on the 95 harness and it will work without ews.

I really love the ETKs......
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Old 03-08-2010, 06:39 AM   #4
Bluebimma
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M42s with a silver labelled dme have ews in them, which is 95 only. 96 kicked off the m44 and ews2. EWS 1 is defeated with a chip or by cutting the ews wire. ews2 requires a software reflash.
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Old 03-08-2010, 10:15 AM   #5
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Quote:
Originally Posted by Bluebimma View Post
... ews2 requires a software reflash...
... or a sacrificial transponder chip laid before the antenna ring.

Last edited by John Firestone; 03-08-2010 at 06:00 PM.
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Old 03-08-2010, 12:51 PM   #6
jakeb
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So with the 95s and the silver label ecu you can just snip the wire? pin 7 at the x20?

the ews2 also needs the ews2 module and ring and key right? and then it is OBDII as well...I want OBDI, less wiring to worry about and have to hide somewhere
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