700r4 & OBD1?
700r4 & OBD1? Is it possible to do a setup like this? Asking for a friend. We would like to keep the 700r4 and do an OBD1 conversion on a 93. I always thought it was, but he is saying the engine harness has a sensor for the stall converter, etc... i was never aware of that since im an M6 guy 
The 93 uses a 4L60 non electronic. Still uses a tv cable and no pcm to control shifting. The trans does have an electronic speed sensor and lock up convertor. Will the 94-95 pcm control the lock up without controling the rest of the shifting I'm not sure.
On The Tree
Joined: Jan 2010
Posts: 188
Likes: 0
From: richmond, va
why go 700r4 man? 700r4 and 4l60 are the same transmission. 4l60e is just the electirc version used 94-2002. i have a 700r4 in my 1991 trans am gta and hated it. if i was you i'd go with a turbo 350. much stronger transmission and cost alot less for a performence rebuild.
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Verdad Gallardo You know its been so long ago that I had that setup and it did do something but I really don't remember, I think it like bucked when you came to a stop, I know it did do something that would remind you to flip the switch....But it worked great for me, after a while you get used to it like pushing in a clutch to change gears....
gotta be careful about an SES code being tripped in the PCM & it going into limp mode. Make sure you get a piggyback chip on it so you can do things like remove the EGR, AIR & anything else that you won't want to also swap over
The 700R4 is non electronic so there is no limp mode for that...
you CAN wire up the PCM to control the TCC soleniod on the 700r4 it will work fine even with the rest of the garbage unplugged i did this on my 4L60e when i went to manual valve body......personally id say just run a switch to it ......orrrr buy my transmsission its for sale!!! lol
you CAN wire up the PCM to control the TCC soleniod on the 700r4 it will work fine even with the rest of the garbage unplugged i did this on my 4L60e when i went to manual valve body......personally id say just run a switch to it ......orrrr buy my transmsission its for sale!!! lol
Yup, there are a few ways to do it, like you did and like mine, it was vacum modulated which controlled the line pressure and made it downshift on its own, but had a switch for the lock up...The other question is, are 700's stronger than their electronic counterparts? some say there are the same, others say the 700 is stronger, all I know is that the 700 I had did hold up where the previous 5 electronic ones failed, so???
Yup, there are a few ways to do it, like you did and like mine, it was vacum modulated which controlled the line pressure and made it downshift on its own, but had a switch for the lock up...The other question is, are 700's stronger than their electronic counterparts? some say there are the same, others say the 700 is stronger, all I know is that the 700 I had did hold up where the previous 5 electronic ones failed, so???
