EGR Valves. LX9 engine swap from LA1

[Tijoe]

Here is some information regarding EGR valve differences between a 2005 LX9 and 1999 LA1 engines.

1999 LA1/3.4L EGR Valve, Delphi Part # EG10022
2005 LX9/3.5L EGR Valve AC Delco P/N 2142018.

Both EGR valves use 5-wire connectors. But the connectors are not interchangeable.
The valves function the same and have the same wiring, but an orange and tan wire is used in the 2005 LX9 EGR valve, and a red and a black wire is used in the 1999 LA1 EGR valve. When using a 1999 LA1 engine harness, a 2005 EGR connector needs to be used.

[IsaacHayes]

So are the wires in the same locations, it's just the plug doesn't snap in?

[Weatheralls Auto]

Yes, same locations; (according to schematic)
A, Egr Control
B, Egr Ground/Low Reference
C, Egr pintle position
D, Egr 5v Ref
E, Egr Feed

[mickaz]

on my 96 I had to reverse the EGR plug and it plugs right in the new egr (3500 egr)

[Tijoe]

>on my 96 I had to reverse the EGR plug and it plugs right in the new egr (3500 egr)

When I reversed the plug, it fit, but did not clip onto the retainer, and then the wires were in a backward order. I tried getting the pins out, but even using a pin extractor, I couldn't get the pins to come out the top. I had the right connector from the 3500 harness, so it was s easy to splice and solder the wires and have the connectors fit perfectly.