96-97 ECM swap FAIL

[payback]

Well, i decided i need to get a little more familiar with the DHP unit other than just clearing out codes so i went to the yard picked up a '97 Venture ECM, get home download the bin, go out disconnect the neg, swap the ECM blue with blue clear with clear etc, connect the neg&the fan turns on and wont shut off...now im freakin out because i dont want my battery dying so i quick try to flash the bin into the ECM and of course...i forgot to get the VIN of the damn van...so now i cant even do a manual VIN entry.
i have the keyspan USB HS adapter and the baud was all the way up in powrtuner

Something is kind of weird though, the actual ECM itself is shaped like a shoehorn, there were two '97 ventures in the same area the first one i looked at was shaped just like my '96...this one is not.
Im not too worried about frying that ECM as they dont really care if it works or not and i think im going to swap it out tommorow for a different one...and NOT forget the VIN. i may just get another '96 ECM and start with that instead being i have the '96 bin saved to flashdrive&there are no differences in parameters but eventually im going to HAVE to have the '97...anyone know anything about this odd shaped ECM? anybody have any suggestions?
Ive spent alot of time researching and thought i had it about right...guess not.

[payback]

OK, now i have a HUGE problem, i swapped my untouched '96 ECM back into the car, reconnected the neg NOW IT WONT START! i hooked up the DHP and it wont even do a DTC scan, it keeps saying Error#1550 severity 1 unable to disable normal VPW and unable to intitialize HWIO layer aborting....HELLLPP!
it should have been fine i didnt touch the damn thing.
ive heard of it popping a fuel pump fuse but the fact that it wont scan now makes me extremely nervous

[SappySE107]

You cannot use the different style ECM as the pinouts are different. 96 and 97 look the same. I have no idea what plugging the wrong computer in will do.

[payback]

You cannot use the different style ECM as the pinouts are different. 96 and 97 look the same. I have no idea what plugging the wrong computer in will do.

popped the #1fuse, replaced...fired right up.

[SappySE107]

I disabled VATS on the 97 PCM that I had swapped into a 96. I have no idea what yours is doing though.

[payback]

yeah, ill have to get a pic of this ecm its odd looking, i looked at a few other '97 ecm's they were identical to mine...this one was not, i dont know what the differences could be but im not even going to bother with it, im going to just get another '96 and start with that since the pinouts are the same and obviously monkey'n around with that is alittle outta my league at the moment. trial&error

[payback]

here it is

[3400-95-Modified]

That is not a 97 venture ecm... that's something else. Do not use it again. Get the 97 ecm that ends with 058 in the service number. Its very easy to find the right one.

Ventures don't have VATS enabled by default anyways so that's not an issue.

Also why do you need the vin?

You need to get the supported Venture bin file that's on the powrtuner website so you have a file you can flash, but before you even do that you need to adjust the fuel injector flow rate otherwise it will not run right, and you will need to adjust the trans tables so it will shift properly.

[payback]

That is not a 97 venture ecm... that's something else. Do not use it again. Get the 97 ecm that ends with 058 in the service number. Its very easy to find the right one.

Ventures don't have VATS enabled by default anyways so that's not an issue.

Also why do you need the vin?

You need to get the supported Venture bin file that's on the powrtuner website so you have a file you can flash, but before you even do that you need to adjust the fuel injector flow rate otherwise it will not run right, and you will need to adjust the trans tables so it will shift properly.

thats so weird, its possible the yard marked it wrong though, ive seen '99 berettas there before lol.
in any case.. youre saying i need to make those changes to the bin file in DHP BEFORE i do a full write. i have the stock '96 file so i can basically use that and copy those values into the '97 file, then do a full write.
thought i might need the vin in case there was an OSID problem
also i looked over the 058, that would have saved all of it right there. i have a thread you posted bookmarked for ref. so its a huge for me. i hate feeling like im wasting anybodys time.

[3400-95-Modified]

LOL, its ok.

and yes for most of the tables that are exactly the same you can copy them over from the 96 file to the 97 one, Some differ in scale, so you will have to take what you can, or just do a fill entry, injector flow rate is one. The beretta file only has one static value, The Venture one has a table that goes with the MAP scale, so you can later in life, figure out what your injectors actually flow when the modulator reduces the fuel pressure. And you would do all of this before a full write.

Don't even worry about what OSID comes on whatever ECM you get, just DL the 97 venuture file thats supported and then just do a full write to whatever 058 ecm you get "using ecm vin" and it will write over just fine. You really only need a vin handy if your ECM gets interupted during a write... but even then I'm not sure if the vin has to be specific to the year ECM it is... I've never tested writing a 96 vin to a 97 ECM... I should try that someday and see if I can get my setup to match.

One table you cant forget in the venture file is the Drive sprocket ratio setting, you want that set for 1.12 if you have a stock beretta trans... if you have a 3.29 trans then it should be 1, and if you have a 3.69 like mine it would have to be .89 It all depends on which drive and driven sprocket you have in it.

[payback]

Well, used a different '96 ecm and did a full write, worked great, no bugs whatsoever, 20 minutes later i started with a couple of scans...dont know if theyll work or not. i have yet to venture into tinkering around with anything.

[3400-95-Modified]

Well, used a different '96 ecm and did a full write, worked great, no bugs whatsoever, 20 minutes later i started with a couple of scans...dont know if theyll work or not. i have yet to venture into tinkering around with anything.

Need to do a few more logs with TP scanned, and possibly FT Cell. But I did notice you have very high negative trims... Whats done to this car?

[payback]

Need to do a few more logs with TP scanned, and possibly FT Cell. But I did notice you have very high negative trims... Whats done to this car?

yeah, i think thats because i had just swapped the ECM, i did one more scan with TPS and FTC but i must have removed MPH. i still seems even after a 600 mile trip the LTFT's are still high negative, at least to me.
the car is 100% stock other than a K&N cone and a '01 malibu intake tube, which is more straight and not bent like stock and the IAT sensor closer to the TB. shes got 232k miles on her.
the only thing i really wanted to do is get it tuned for 93 octane and remove the limiter, which i think is already done because i checked all the limiters in the bin file they were set to 255mph. apologize i could only get one scan in, also i just remembered i have been running the car on 89. dont know if it would make that much of a difference or not.

[3400-95-Modified]

Before I spend a lot of time here even trying to help, I will ask ONE thing.

Why are you trying to tune it for 93? What do you expect to gain over using 89? Or even 87

[bszopi]

I agree. I would tune for midgrade at most. The highest we can even get around here is 93. I'd hate to see you tune it for 93, then go somewhere where 93 isn't available and have the car run like crap. If its a DD, tune it for a lower octane.