dreaded Po720 code questions

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Jan 27, 2020 | 07:17 PM

#16

4wheelingpete

Thread Starter

Freshman User

Joined: Sep 2007

Posts: 27

Likes: 0

From: So. Cal.

There’s continuity but not sure if wire has strands broken inside the insulation. I didn’t see any grounds aside from the ones that go to the ECU.
Truck is running good as of now but I have a feeling I’ll be having issues with it in the future. Now that I have the harness hooked back up. If I have issues down the road. I’ll probably have to find another harness.

Jan 27, 2020 | 07:19 PM

#17

Mark Kovalsky

Frmr Ford Trans Engr

Joined: Aug 1999

Posts: 24,734

Likes: 2,663

From: SE Florida

With both ends of the harness unplugged, put one probe on the wire you're testing. Put the other probe on a good ground. Is there continuity? If so, you have a short to ground.

Jan 27, 2020 | 09:01 PM

#18

Yahiko

Fleet Owner

Joined: Apr 2012

Posts: 27,307

Likes: 549

From: Spanaway

Quote:

Originally Posted by Toreador_Diesel

I was VERY fortunate to get a new transmission harness after the transmission shop that rebuilt my transmission hacked mine up trying to fix a hardware problem they caused.

They found one in Livonia (One of Ford's transmission plants) and sent it to me. It was no easy find, they had them all day for 2005-2007 Super Duty but not my 2005 Excursion.

It'll probably require a little work but I'm sure you can find one.

Sorry for the

Have you info on doing the mod on engines that have the throttle plate assembly?
I am looking for a little help for this guy,
https://www.ford-trucks.com/forums/1...l#post19078771

Quote:

Originally Posted by 4wheelingpete

Awesome man! Thanks for all the info! I’ll definitely get me a Dongle. I’m just using my SCTLivewire monitor

Be sure to search for Forscan in the 6.0L forum as there are ways to get info with laptop or a smart phone and tablet.
I understand that the laptop version might give more data.

Apr 3, 2020 | 01:55 PM

#19