Bypass c305 connector

Tiny
KIPP_1992
  • MEMBER
  • 2003 PONTIAC MONTANA
  • 180,000 MILES
I had a lot of water leakage into the c305 connector pins were corroded Nd snapped off. Van had been having a few issues and some told me to check the c305 connector. So I did. I was told I could bypass the connector but do not know which wires connect to which from inside van that was in the c305 connector and ones coming from the 3 wiring harnesses that connected to the c305.
Tuesday, February 11th, 2020 AT 7:09 PM

30 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

That connector was a very bad design. I have done many of them.

You can buy the connector for a little money but you have to pin it.

I attached the diagram. I circled the wires that go through that connector. It is for the fuel pump, sender and the fuel pressure sensor.

Roy
Images (Click to make bigger)
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Tuesday, February 11th, 2020 AT 8:45 PM
Tiny
KIPP_1992
  • MEMBER
  • 18 POSTS
What are the pink wires? All wires were pulled out of c305 connector there are two pink wires and only one connector coming from under van has a pink wire. There's also a light blue wire.
Was this
answer
helpful?
Yes
No
Tuesday, February 11th, 2020 AT 8:51 PM
Tiny
KIPP_1992
  • MEMBER
  • 18 POSTS
I would like to bypass the connector if I could and just hard wire it I have looked all over for the connector. Just want to know what wires would attach to what.
Was this
answer
helpful?
Yes
No
Tuesday, February 11th, 2020 AT 8:54 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I understand.

Can you post some pictures of the wires? The diagram does not show pink wires.

Roy
Was this
answer
helpful?
Yes
No
Tuesday, February 11th, 2020 AT 11:17 PM
Tiny
KIPP_1992
  • MEMBER
  • 18 POSTS
Yes, when I get home I will.
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 4:01 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Thank you.

Roy
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 4:39 AM
Tiny
KIPP_1992
  • MEMBER
  • 18 POSTS
How do I post photos?
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 5:51 AM
Tiny
KIPP_1992
  • MEMBER
  • 18 POSTS
That's the wires on inside.
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 6:14 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
What about the other side of the connector? Can you show me that as well?

Roy
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 8:31 AM
Tiny
KIPP_1992
  • MEMBER
  • 18 POSTS
Other side of which connector?
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 8:37 AM
Tiny
KIPP_1992
  • MEMBER
  • 18 POSTS
This?
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 8:39 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I need to see the wires you are connecting too.

Roy
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 8:43 AM
Tiny
KIPP_1992
  • MEMBER
  • 18 POSTS
And the other plug has 4 wires coming out and 1 blue wire that was in a plug of its own.
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 8:52 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
That is good.

You can start by matching up the colors of the wires in that connector to the loose wires.

Start matching up the wires and see if they all are accounted for.

Roy.
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 9:05 AM
Tiny
KIPP_1992
  • MEMBER
  • 18 POSTS
All except on the inside of van there is two wires that don't match up with any on connectors. So I don't know where they connect an extra pink and I think white.
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 9:09 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Those wires are for the vent solenoid on the fuel tank.

Roy
Images (Click to make bigger)
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 9:14 AM
Tiny
KIPP_1992
  • MEMBER
  • 18 POSTS
There was one plug with 4 wires black red white and brown then one with 8 wires and the third little plug only had a light blue wire in it. I'm confused here.
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 9:18 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You just said all the wires match up except the pink and white.

Can you explain?

Roy
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 9:22 AM
Tiny
KIPP_1992
  • MEMBER
  • 18 POSTS
There's two extra in the van than what's coming from the connectors one pink one goes to the big connector under the van, but the other pink one doesn't match up with another wire coming from either connector and I think there is a white on two that doesn't match up to another wire.
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 9:33 AM
Tiny
KIPP_1992
  • MEMBER
  • 18 POSTS
If you look at my first photo I posted there is two pink wires.
Was this
answer
helpful?
Yes
No
Wednesday, February 12th, 2020 AT 9:34 AM

Please login or register to post a reply.

Related General Content

GUIDE
In­quire Here