98 Lumina EGR
dadzilla15
05-06-2006, 07:10 AM
Can anyone provide me with the ECM pinouts for the EGR valve on this 98 Lumina 3.1??? Getting P0401, P0403 and P0405 and want to check wiring between ECM and valve before replacing ECM, have already tried a new valve same problem. Either pinouts or a link to a diagram would be great, any other thoughts would also be appreciated.
Thanx!!!!
Thanx!!!!
richtazz
05-08-2006, 08:38 AM
I PM'ed another member for you that may have the info. Keep an eye out for his reply.
richtazz
05-08-2006, 10:26 AM
Here's his answer. It is from a Grand Prix service manual (the Lumina is mechanically similar), but since the two vehicles use the same PCM (I checked the GM computer) I would assume the info is valid for you car as well.
The EGR is divided into two parts electrically. The EGR solenoid and the pintle position. PCM is on left below. The EGR connector is on the right. The solenoid and pintle is broken down separately.
PCM <-------->EGR
EGR Solenoid
pin 29 - pin A gray EGR solenoid on/off from PCM
IGN 1 - pin E pink 12v - Hot from Ignition Circuit (Main Fuse Box)
EGR Pintle
5 volt ref - pin D gray - Reference voltage to pintle
pin 65 - pin C brown - Pintle Linear Position back to PCM
Ground - pin D black - Pintle ground
I hope this info helps.
The EGR is divided into two parts electrically. The EGR solenoid and the pintle position. PCM is on left below. The EGR connector is on the right. The solenoid and pintle is broken down separately.
PCM <-------->EGR
EGR Solenoid
pin 29 - pin A gray EGR solenoid on/off from PCM
IGN 1 - pin E pink 12v - Hot from Ignition Circuit (Main Fuse Box)
EGR Pintle
5 volt ref - pin D gray - Reference voltage to pintle
pin 65 - pin C brown - Pintle Linear Position back to PCM
Ground - pin D black - Pintle ground
I hope this info helps.
dadzilla15
05-08-2006, 10:37 AM
Thanks, I appreciate the reply. This should help me out!!:grinyes:
richtazz
05-08-2006, 10:40 AM
There was an error on his original post, see correction below
Here's his answer. It is from a Grand Prix service manual (the Lumina is mechanically similar), but since the two vehicles use the same PCM (I checked the GM computer) I would assume the info is valid for you car as well.
The EGR is divided into two parts electrically. The EGR solenoid and the pintle position. PCM is on left below. The EGR connector is on the right. The solenoid and pintle is broken down separately.
PCM <-------->EGR
EGR Solenoid
pin 29 - pin A gray EGR solenoid on/off from PCM
IGN 1 - pin E pink 12v - Hot from Ignition Circuit (Main Fuse Box)
EGR Pintle
5 volt ref - pin D gray - Reference voltage to pintle
pin 65 - pin C brown - Pintle Linear Position back to PCM
this is wrong Ground - pin D black - Pintle ground
should read: Ground - pin B black - Pintle ground
I hope this info helps.
Here's his answer. It is from a Grand Prix service manual (the Lumina is mechanically similar), but since the two vehicles use the same PCM (I checked the GM computer) I would assume the info is valid for you car as well.
The EGR is divided into two parts electrically. The EGR solenoid and the pintle position. PCM is on left below. The EGR connector is on the right. The solenoid and pintle is broken down separately.
PCM <-------->EGR
EGR Solenoid
pin 29 - pin A gray EGR solenoid on/off from PCM
IGN 1 - pin E pink 12v - Hot from Ignition Circuit (Main Fuse Box)
EGR Pintle
5 volt ref - pin D gray - Reference voltage to pintle
pin 65 - pin C brown - Pintle Linear Position back to PCM
this is wrong Ground - pin D black - Pintle ground
should read: Ground - pin B black - Pintle ground
I hope this info helps.
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