EGR P0327 code

PRECILLA

MEMBER
2001 PONTIAC GRAND PRIX
TURBO
AUTOMATIC
150,000 MILES

My first question pertains to the check engine light. When I scan it, the code p1404 comes up, which is an EGR valve code. I replaced the EGR valve 4 times and it still reads this problem. What is going on? Is it just a problem with the system?2001 Pontiac Grand Prix 1)The check engine light wont go off and its reading a problem with the EGR valve 2)where is the knock #1 sensor located?

My second question is about the p0327 code, I don't believe that this code is causing the check engine light to come up, but I still need to know where the knock #1 sensor is located on my car.

2 Replies

HMAC300

MECHANIC
48,601 POSTS

THERE IS A COMPUTER REFLASH FOR 3.8L ENGINES ! EVEN THOUGH DEALER SAYS ONLY FOR 3.1L + 3.4L ENGINES
Had a code p1404 on an 01 Monte Carlo. Turned out to be plugged exhaust and nothing wrong w/ the EGR system check these first any place that has a pro scanner should be able to update pcm. This could also be a bad pcm or wireing issue as well.