Ever since I got this 01 88 back from the dealer the turnsignals both flash as soon as the engine light goes out b4 starting. What is going on?

 

You threw a code. Check the codes through the speedo and that will tell you what code it is. There is a section here on the forum under do it yourself section that will show you how to check the codes.

 

checked the codes and got do1-d1-clr followed by PPU. looks ok to me runs fine, would be nice to get rid of the flashing turnsignals

 

On my 01 it was the turn signal/security module. Got rid of the security by putting in a turn signal module from a Heritage model. It's a lot cheaper than the security version.

 

my 02 ultra was flashing 5 or 6 times at startup, replaced the turn signal module with a spare i had laying around and all is well.