What does code p1406 mean for a 1997 buick lesabre?
Thursday, October 25th, 2007 AT 5:38 PM
1 Reply
MERLIN2021
MECHANIC
17,250 POSTS
P1406= Exhaust gas recirculation pintle error. Means the EGR valve position sensor detected the EGR open at the wrong time. Could need cleaning, or replacement.