egr valve wiring diagram

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

74propu

Full Access Member
Joined
Aug 8, 2015
Posts
687
Reaction score
242
Location
florida
First Name
austin
Truck Year
1974 1980 1986
Truck Model
c10s/b c10 s/b c10l/b
Engine Size
5.3 / ?/454 tbi
I need a little help on my 86 it has a 1995 454 tbi with a 4l80 e trans when I got the standalone harness it was a egr delete .Now I cant find anyone that can delete the egr out of the ecm and chip so I am going to put the egr back in it .I found a 1995 3500 in the pap and pulled the harness for the egr out all the way to the ecm .So I know where the 2 gray 1 black and 1 brown wires go in the ecm I don't know where the 1 red wire to the egr valve goes or where it is fed from I need help please
 

1987 GMC Jimmy

Automobile Hoarder
Joined
Jan 23, 2016
Posts
5,848
Reaction score
2,389
Location
Mississippi
First Name
Jesse
Truck Year
1987
Truck Model
V1500 Jimmy
Engine Size
350
Do you have the PCM pinout and harness diagram?
 

Attachments

  • image.jpg
    image.jpg
    98.5 KB · Views: 451

74propu

Full Access Member
Joined
Aug 8, 2015
Posts
687
Reaction score
242
Location
florida
First Name
austin
Truck Year
1974 1980 1986
Truck Model
c10s/b c10 s/b c10l/b
Engine Size
5.3 / ?/454 tbi
Thank you for the wiring diagram it told me what I needed to know I think but the pin out for the it might be good to have .
 

74propu

Full Access Member
Joined
Aug 8, 2015
Posts
687
Reaction score
242
Location
florida
First Name
austin
Truck Year
1974 1980 1986
Truck Model
c10s/b c10 s/b c10l/b
Engine Size
5.3 / ?/454 tbi
Well today I got the egr all hooked up and wired thanks to Jesse . The eng now runs right smooth as glass good power and 900 rpm at idle .
 

1987 GMC Jimmy

Automobile Hoarder
Joined
Jan 23, 2016
Posts
5,848
Reaction score
2,389
Location
Mississippi
First Name
Jesse
Truck Year
1987
Truck Model
V1500 Jimmy
Engine Size
350
Well today I got the egr all hooked up and wired thanks to Jesse . The eng now runs right smooth as glass good power and 900 rpm at idle .

Glad you were able to match all your wires per the diagram. Those EGR systems can really get you if they're not working right.
 

Latest posts

Forum statistics

Threads
44,424
Posts
957,542
Members
36,776
Latest member
Love Samantha
Top