94 LT1 into a 97
94 LT1 into a 97 hey guys well i am in the process of buying a motor out of a 94 camaro and was wondering what all was going to be needed to do the swap.
My main question is:
Is the engine wiring harness from a 94 the same as the 97 lt1's?
I am just trying to figure out all i will need to do the swap and make it as smooth as possible.
Thanks guys
My main question is:
Is the engine wiring harness from a 94 the same as the 97 lt1's?
I am just trying to figure out all i will need to do the swap and make it as smooth as possible.
Thanks guys
No.
The 97 will have more connections for some OBD2 relevant components at the least.
The 97 has a crank sensor that is going to want to be seen by the 97 PCM. I think the cranks may be different in the front too. Some other guys I am sure will confirm or challenge this.
The 97 will have more connections for some OBD2 relevant components at the least.
The 97 has a crank sensor that is going to want to be seen by the 97 PCM. I think the cranks may be different in the front too. Some other guys I am sure will confirm or challenge this.
Ok I thought they would be different. If it makes any difference the guy i bought my car from did the obd1 conversion when he got it tuned for the pacesetter longtubes.
And the motor out of the 94 has an upgraded msd optispark.
And the motor out of the 94 has an upgraded msd optispark.
^^^^What i am considering doing is buying a 94 motor and putting it into my 97 firebird formula.
And if i were to just pull the sensors off of the 97 lt1, to put it on the 94 will there be provisions for all the sensors or will i just not use the sensors that there isnt a place for and just have them deleted from the pcm? I will be most likely doing a mail order tune and then going and getting it dynotuned later on.
Thanks again fellas as this is my first time doing a motor swap! Pretty stoked about it, but like i have said i wanna be ready for everything that i can!
And if i were to just pull the sensors off of the 97 lt1, to put it on the 94 will there be provisions for all the sensors or will i just not use the sensors that there isnt a place for and just have them deleted from the pcm? I will be most likely doing a mail order tune and then going and getting it dynotuned later on.
Thanks again fellas as this is my first time doing a motor swap! Pretty stoked about it, but like i have said i wanna be ready for everything that i can!
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there are some differences but nothing major.
i have a 97 and im not 100% on the exact differences but your biggest thing will be getting an inspection. that 97 ecu is going to throw codes if you dont have air pumps, egr and ****, which i dont know if 93-95 lt1s have.
looking back now i really wish i would have waited for a 93-95 to come around so i wouldnt have to mess with emissions but too late now
i have a 97 and im not 100% on the exact differences but your biggest thing will be getting an inspection. that 97 ecu is going to throw codes if you dont have air pumps, egr and ****, which i dont know if 93-95 lt1s have.
looking back now i really wish i would have waited for a 93-95 to come around so i wouldnt have to mess with emissions but too late now
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Sorry I missed your call tonight Devin, my phone has been acting gay. Hopefully the New Droid will be here tomorrow.
Why you swapping motors? Something bigger and better or something to replace a blown motor?
Why you swapping motors? Something bigger and better or something to replace a blown motor?
Will all of the sensors from the 97 motor transfer over to the 94 motor or like i mentioned above will i have to have the sensors that wont transfer over deleted from my pcm?
And about the inspection I live in Kansas and dont have to worry about emissions.
Thanks again guys!
And about the inspection I live in Kansas and dont have to worry about emissions.
Thanks again guys!
Last edited by ~BuMps AloT~; Apr 6, 2010 at 08:41 PM.
I called up one of my buddies tonight and asked him what he thought i should do and he said to take my timing cover off of my 97 (because it has the crank sensor) and just put it on the 94 motor along with changing out the optisparks.
Is this all that i will need to do or will i need to do other things?
Thanks!
Is this all that i will need to do or will i need to do other things?
Thanks!
Swap the timing cover, crank reluctor ring, CPS, 97 hub will also need to be used. The 96 97 hubs are shorter to allow room for the reluctor ring. Also the opti will need to be swaped and I don't know about the opti drive? Everything else is the same. Even the intakes. I just did this on my 97 with a 95 engine that I stroked.
Ok, slow down here. You said the vehicle already has an OBD1 computer if I read correctly? I have a 97 myself, I did the OBD1 computer, and it has a 94 motor in it. I removed the 97 motor and dumped in the 94 motor. That was all I did. You WILL need the opti pigtail for the 94 distributor, because the pigtail is different where it hooks into the opti. Swap no sensors, swap no front cover, swap no opti. If you are using your 97 harness, you'll need to pull the coil and ICM off your 97 and put it on the 94, because the 94 used a two plug coil, your 97 uses the single plug 4 pin on the coil. I maintained the 97 harness, so I used the 97 coil on mine too. The wire that goes down to the would be crank sensor can just be snipped off your harness, you won't need it with the OBD1 computer anyway, because it's not looking for the sensor. I have done this, it works, don't over complicate the job man!!
Here is some information about the obd 1 conversion from Madtuners website: The main thing that i noticed is the last bit of information about the obd1 vs obd2 pcm
OBD2 to OBD1 Conversion PCM
Price: $250.00
OBD2 to OBD1 Conversion Kit for all 96-97 LT1s. Absolutely Plug and Play! Includes a modified OBD1 PCM to work with your OBD2 knock sensor(s) and full programming.
What are the advantages of an OBD1 Conversion?
Some people opt for an OBD1 conversion over OBD2 tuning since this conversion gives you several advantages:
It usually yields a few more HP than a programmed OBD2.
You can keep your stock PCM (in case you want to keep it as an original part or if you have to pass emissions).
Programming and datalogging software for OBD1 is considerably more affordable and sometimes even free.
It is more "forgiving" than an OBD2 when it comes to modifying your car (it has fewer codes it can trigger).
The OBD1 system does not have a crank sensor or rear oxygen sensors, so the OBD1 PCM will ignore these devices. (You can still disable them in OBD2 programming if you choose to stay OBD2.)
OBD2 to OBD1 Conversion PCM
Price: $250.00
OBD2 to OBD1 Conversion Kit for all 96-97 LT1s. Absolutely Plug and Play! Includes a modified OBD1 PCM to work with your OBD2 knock sensor(s) and full programming.
What are the advantages of an OBD1 Conversion?
Some people opt for an OBD1 conversion over OBD2 tuning since this conversion gives you several advantages:
It usually yields a few more HP than a programmed OBD2.
You can keep your stock PCM (in case you want to keep it as an original part or if you have to pass emissions).
Programming and datalogging software for OBD1 is considerably more affordable and sometimes even free.
It is more "forgiving" than an OBD2 when it comes to modifying your car (it has fewer codes it can trigger).
The OBD1 system does not have a crank sensor or rear oxygen sensors, so the OBD1 PCM will ignore these devices. (You can still disable them in OBD2 programming if you choose to stay OBD2.)
