I've been reading different ECU posts on the board but none have given a conclusive answer to the following:
Can I use a 1997 ECU in a 1995?
Now, I know the connectors are different. But, can I rewire a new connector to the old wiring?
Here is a page I made with the 1995 and 1997 pinouts from the main site, with the cross reference for every pin I could figure out. If it is possible to use the 1997 ECU, could you visit that link and perhaps help out with what's left?
Reason for all of this, after reading about the defects in the 1995 ECU and how some people are on their 3rd ECU, and mine is dead, I don't want to deal with another 1995 ECU and am willing to put in the work of changing the wiring over to 1997.
#99574, "RE: 1995 to 1997 ECU (some homework done)" In response to Reply # 0
Ive never heard of any common/typical problems with the 95. Dont waste your time, just use s 95. Your not reading stuff about the turbo eclipse ECU are you? The crap about the bad capacitors,etc..?
Seriously get a 95, if you read about a slew of problems its probably just a fluke
#99578, "RE: 1995 to 1997 ECU (some homework done)" In response to Reply # 2
95 ecus had a problem where at like 50 MPH the engine will suddenly die and it won't start anymore. I think there was a recall or something to fix it because it never happened to mine and I have a sticker on my car that sez that they updated something on the ECU.
Anyway I would just stick with the 95, 95s are the most different out of all the other years. Different ECU, different fuel system, different OBD functions, etc...
http://www.hadesomega.info -car specz and movies 95 Eclipse RS | 76' 280Z | 89' MR2 | 99 Neon | 91 Zephyr Who sez FF can't drift?
#99581, "RE: 1995 to 1997 ECU (some homework done)" In response to Reply # 3
All,
I don't mean to be rude, but like I said in the first post, this is a question that has not really been answered. Yes, I know most people will say stick with 95, its easier etc....but I wan't to know if a 97 will work, not that it's easier to run a 95.
Sorry for the abruptness, just want to keep this on track with the original question.
#99582, "RE: 1995 to 1997 ECU (some homework done)" In response to Reply # 4 Jun-29-06 02:09 PM by DarkOne
Try it. You'll need a 97 ECU, harness connector, and a section of harness. All the sensor inputs are the same. There are emissions controls the 97s have that the 95's don't, so expect a permanent CEL. In theory, with the rightwork, there's no reason it couldn't be done.
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#99596, "RE: 1995 to 1997 ECU (some homework done)" In response to Reply # 6
I can tell you red/black is the ASD relay. The rest.. you're on your own.
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#99601, "RE: 1995 to 1997 ECU (some homework done)" In response to Reply # 7
not to hijack the thread or anything, but im wondering if the ECU's are interchangable between the 96 & 97 years...and between models... cuz im fixin to do a atx to mtx swap w/ the running gear from a 97 avenger into my eclipse..and that'd just suck if the ecu connectors were different.
#99604, "RE: 1995 to 1997 ECU (some homework done)" In response to Reply # 8
They're all different. Every year. Search button could have told you that.
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#99653, "RE: 1995 to 1997 ECU (some homework done)" In response to Reply # 14
Heheh actually I've found at least 12 different models of 95 ECU if you're going by part numbers. The nice thing is that most (if not all) of the 95's are interchangable as long as the connector is the same and they get the latest flash ROM revision from the dealer.
If your chassis build date was 6/15/94 or earlier, you have the "early" 95 ECU.
#99654, "RE: 1995 to 1997 ECU (some homework done)" In response to Reply # 3
Originally posted by HadesOmega 95 ecus had a problem where at like 50 MPH the engine will suddenly die and it won't start anymore. I think there was a recall or something to fix it because it never happened to mine and I have a sticker on my car that sez that they updated something on the ECU.
You're confusing two different problems with the 95 ECU's
1) There was a recall of the PSIA system (snorkel on downpipe) only found on 95's that required an ECU reflash for smog compliance. 2) There is a problem with the manufacturing of the 95 ECU circuit boards that causes the engine to shut off while driving. Repairing the ground traces on the board is possible, but extremely tedious and time consuming.
ECU's that have been upgraded and fixed for problem #1 may still fall victim to problem #2. They're not related at all.
#99717, "RE: 1995 to 1997 ECU (some homework done)" In response to Reply # 16
there's also different version of the ECU made for cali due to smog. the fuel tables an stuff are a little different. something like that. i don't think it made that big a difference.
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