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- Sun Dec 11, 2022 1:27 pm
- Forum: General Tuning Discussion
- Topic: gm obd1 question
- Replies: 0
- Views: 1937
gm obd1 question
Worked for 25 plus years for dealers (Gm Ford Toyota) done ecm reflashes for all of them but never rewrote any programs. I am putting twin turbos on my 31 chevy 350 tbi with 700r4 everything works great with 91 chevy c1500 ecm now. I have tech1 scaner and snap on modis plus with lab scope. 1st quest...