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Old 10-27-2009, 03:07 AM   #1
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ecm identification ?
can the ecm be identified by running the diagnostics on OBD1?
Got a 87 ecm I am hoping to pass off as a 91 ecm.
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Old 10-27-2009, 09:27 AM   #2
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Re: ecm identification ?
I know the 87 unit uses mass air sensor. Most 91 models were speed density. If so, they will not interchange. You can usually get a 91 model 122730 off ebay for a few bucks
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Old 10-27-2009, 01:12 PM   #3
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Re: ecm identification ?
I was not clear, did an engine change into my 240sx and
it has to be inspected, need fuel injection and smog equpiment from a vehicle similar in year or newer. my car is 91
I am hoping that if I use the 87 ecm and keep the MAF well hidden that the smog ref will not notice, or be able to tell.
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Old 10-27-2009, 01:27 PM   #4
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Re: ecm identification ?
id say failure is an option.
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Old 10-27-2009, 03:58 PM   #5
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Re: ecm identification ?
Quote:
Originally Posted by enswrob View Post
id say failure is an option.
more I think about it I think you are right.
can't hide the MAF that well and would have to have dummy map sensor
and would need to pull the 9 injector for cold start.
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Old 10-27-2009, 04:00 PM   #6
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Re: ecm identification ?
Do you have pictures of your TPI 240sx swap? My buddy has a 240, and I have alot of extra TPI parts..
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Old 10-27-2009, 04:09 PM   #7
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Re: ecm identification ?
have not put in the TPI it is still sitting in donor car.

link to video

http://www.youtube.com/user/divinese.../1/aDX5VXxcyGw

here are pics of current setup.
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Old 10-27-2009, 04:09 PM
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