I have a 1996 Grand Prix SE, 3.1 liter with 150,000 on it. The other day it failed inspection with the codes p0303 ( misfire cylnder #3 ) and p0404 EGR flow problem. I`ve fixed the misfire and replaced the EGR vavle but today after driving around for about 12 miles the light came back on. The light came on after I got on the gas hard so I`m guessing the EGR valve wasn`t bad. What else goes with that part that could cause that code? I rest the code by removing the battery power, will that reset the code or must I take the car in and put on a scanner? Any help would be great, I have 5 days till it has to be reinspected.
have the same problem?
Monday, August 20th, 2007 AT 8:58 PM