I try it today and not working. When i go to see to modify In Downshift mph is writing
downshift 2 to 1
2 to 1 tow/haul
3 to 2
3 to 2 tow/haul
4 to 3
4 to 3 tow/haul
and in the downshift 4 to 3 and 4 to 3 tow/haul is writhing 235.7 mph
the PCM
9373372 Operating System
16263835 Engine
9357883 ...
Search found 2 matches
- Thu Aug 09, 2012 5:08 pm
- Forum: Trinity GM Gas
- Topic: 1999 Sierra 4.8l 2x4
- Replies: 2
- Views: 1264
- Wed Aug 08, 2012 6:08 pm
- Forum: Trinity GM Gas
- Topic: 1999 Sierra 4.8l 2x4
- Replies: 2
- Views: 1264
1999 Sierra 4.8l 2x4
I have a DiabloSport T1000 and I see in custom tune I can change the downshift mph, upshift rpm, upshift mph, upshift rpm & tps ... I change some spec in downshift mph and in upshift mph and I don't see the difference. The probleme is when I drive on the highway, my truck go in overdrive between ...