A4 slipping into 2nd gear

[sg5492]

I have a 99 Camaro SS with the A4 and at wide open throttle it just slips into 2nd gear it's not crisp like it should be. Car only has 6,700 miles on it and the only modifications are lid, cold air kit, Y pipe, and a new MAF. Car jsut started this and just cruisin it shifts fine into all 3 gears. No codes or lights fluid still looks like new. Any suggestions or help?

[performabuilt]

I would pull the pan , Check the accumulator spring they are bad to break then replace the pcs solinoid and fluild and filter while in there
performabuilt