My 94 pickup has reached the end,..so i bought a 99 suburban.
I have the 5068 pump on the pickup, and i have a custom chip for it,.
To get a "tune" for the obd2 is out of budget,.
So the question is, what would be in order to convert the 99 back to obd1?

I am getting the burb on saturday, i have never owned an obd2 truck, are the ecm's totally different or similar?

Thanks
Nick