I really doubt it is the pigtail unless you can see something physically wrong with it, like a broken wire or a terminal that is bad, or corroded. The code you come up with can be related to a couple different things. First off, if you replaced the EGR valve with an aftermarket unit from a parts store, you may want to consider using genuine GM parts. You could have a crap EGR valve and just be setting the same code. Or, possibly the PCM is bad and setting the code for no reason. Or, possibly there is a wiring concern somewhere between the EGR and PCM. Any of this requires some detailed diagnosis and special tools.
Another thing you may want to consider, if the EGR port is clogged, or you have a piece of carbon in the new EGR valve, that can give you the same trouble codes and a possible high idle. Sometimes if the port is clogged bad enough, the entire upper plenum needs to be replaced to correct this. You should really get it checked out by a professional so you don't keep wasting money and time.
1996 Pontiac Grand Am se 3.1 High Idle
Re: 1996 Pontiac Grand Am se 3.1 High Idle
GM Dealer Technician For 18+ Years
In the automotive industry for 20+
In the automotive industry for 20+
-
- Similar Topics
- Replies
- Views
- Last post
-
-
New post 1996 grand prix transmission problem
by birdie » Tue Mar 24, 2015 9:56 pm » in Pontiac Grand Prix - 3 Replies
- 6280 Views
-
Last post by carriedi
Fri Mar 27, 2015 4:22 am
-
-
- 1 Replies
- 19072 Views
-
Last post by carriedi
Sat Sep 19, 2020 4:43 am
-
-
New post 2002 Grand Am Ecotec Idle Issues
by wootler » Mon Jul 28, 2014 12:19 pm » in Pontiac Grand Am - 6 Replies
- 11615 Views
-
Last post by butchkaz
Tue Aug 05, 2014 10:22 pm
-
-
-
New post 2002, 3.1, Grand Prix, ROUGH/SURGING idle at a stop
by goodwinbj » Mon Jul 31, 2017 5:23 pm » in Pontiac Grand Prix - 1 Replies
- 14335 Views
-
Last post by carriedi
Mon Jul 31, 2017 10:02 pm
-
-
- 4 Replies
- 12443 Views
-
Last post by carriedi
Wed May 14, 2014 7:22 pm