My 03 wont go into H. In L it is fine in D1, D2 and ESP. Trying to shift into H and it just chatters. I put a new EMS in last summer to solve a rad fan issue and had no issues for 3 months or so. It does occasionally flash D1, D2 and ESP now though. Just shut it off and restart. Hoping it's an adjustment, not another EMS. Any suggestions would be helpful.