I changed from my stock pads to Pagid Oranges tonight, then took the car for a test drive and now the ABS activate under moderate braking (way too early for lockup).

I also mounted new MPSCups on stock 18" wheels at the same time. I'm on dry pavement.

I am NOT an expert, but I had installed the pads and tires together several weeks ago and tested them out. I had also flushed the brake fluid and replaced with Motul 600. Everything was fine then, and I changed back to street pads/tires.

Could I have bumped/broken an ABS sensor? What should I look for? Any ideas?

Help! I'm scheduled for a track day tomorrow!

Or maybe the new MPSCups are exceptionally slippery until you wear through them for 50 miles? This is my first set of them, so I don't know what to expect...

More likely a problem with the sensor than the tires, I've run MPSC's in all sorts of conditions and NEVER had an ABS issue.

__________________

My Gallery | My Articles | My Blog |My Classifieds
K-Man S

Twisty,

I'm in a similar boat. Replaced pads with RS14 blacks, flushed with Motul, been to two track events since and either i am hitting the bump stops (front was too low) or else it's the abs kicking in too soon. I also have sport cups and they have way too much grip for this to be happening.
My car is still in the shop (steering pump gave out last w/e) so will ask them to check the sensors as well this week. Will let u know.