diff --git a/selfdrive/car/car_helpers.py b/selfdrive/car/car_helpers.py
index 46991bb4d..85fcfa1fa 100644
--- a/selfdrive/car/car_helpers.py
+++ b/selfdrive/car/car_helpers.py
@@ -122,10 +122,13 @@ def fingerprint(logcan, sendcan):
   finger = gen_empty_fingerprint()
   candidate_cars = {i: all_legacy_fingerprint_cars() for i in [0, 1]}  # attempt fingerprint on both bus 0 and 1
   frame = 0
-  frame_fingerprint = 10  # 0.1s
+  frame_fingerprint = 25  # 0.25s
   car_fingerprint = None
   done = False
 
+  # drain CAN socket so we always get the latest messages
+  messaging.drain_sock_raw(logcan)
+
   while not done:
     a = get_one_can(logcan)