White 10 pin connector...

Topic: White 10 pin connector... (Read 11165 times) previous topic - next topic

White 10 pin connector...

Reply #30 – November 12, 2008, 05:10:28 PM

Quote

For the right HEGO(passengers' side) the wire goes from the right head to EEC pin49. Orange wire.
For the left HEGO, from the left head to EEC pin 44. Gray/Red wire.
Are you sure the wires are not already there through the HEGO harness? Have you checked the EEC end of the harness ?

Funny you mention this.....
More poking around...Found the passenger side HEGO ground hooked up properly to the back of the block....Driver side --- Hmm. disconnected (buried under the trans tunnel too).

Dug it out, hooked it up went for a drive.....All normal until the car was running for 5 minutes...Ran like hell after that for about a minute @ idle and under load as well as an attempt @ WOT....
Went away about 2 minutes later.....

Unhooked the ground. Let car sit for 3 hours. Went for drive. Problem gone. I pulled plugs. A little on the white side, but that's more a timing issue -- nothing detrimental (backed the timing back down to 12* BTDC which I'd been meaning to do for a while -- had it @15.)
FWIW when I had the timing @ 12 in the summer and checked the plugs back then they were perfect.

Changed the converter last year. Didn't pull any wires then other than 1 ground from the bellhousing. Haven't had a look at that HEGO ground since early '06 when the motor went back in.

So tell me? Is it possible I'm in constant open loop? Considering how well the car runs and the gas mileage I get while at a steady cruising speed, I find that hard to believe....Especially considering that When I played with my fuel pressure back then, the codes went away...

Quote

If I understand you correctly, there is an orange wire in the bottom side of the white 10 pin connector that ends a short distance into the harness. That bottom side harness goes to the EEC.
What does that orange wire connect to in the top part of that 10 pin connector. Probable nothing.

Negative.....It's the TOP side that goes to the EEC....Bottom side branches out to all the connections under the hood TPS, injectors, IAC, EGR, etc. as shown in the diagram. The side that is cut goes to my block. That dead end wire goes to the connector and has a corresponding mate that goess to the main harness and into the firewall...THAT part of the wire is there and does indeed feed into the firewall.

White 10 pin connector...

Reply #31 – November 12, 2008, 06:00:43 PM

So Paul are you saying that wire actually is goin somewhere?
Or are you putting it somewhere.

White 10 pin connector...

Reply #32 – November 12, 2008, 07:11:24 PM

I believe the orange wire goes to pin 49 on the ECU 60-pin connector. I know it goes into the firewall.

Dug out my tester today too. Couldn't get it to read.....Nothing in KOEO or KOER. By the looks of my connector I'm guessing it needs a good cleaning, however when I hook it up there is a light that is supposed to come on and it does.....THAT light is supposed to blink with respective codes.....NOTHING. No solenoid/actuator noises either.

My friend has one of those nice Snap-On testers @ his shop. Guess I'll spin by there after work when he opens up and confirm that issue......

Jeez, it just gets worse and worse.

Still wondering if I'm in open or closed loop. I'll know more tomorrow. Until then -- any thoughts on the issue?

BTW to the original poster -- I thank you. Without this thread I would have remained ignorant to the situation with my own vehicle. I hope we've answered some of your questions. I hope I get the answers I'm looking for as well

White 10 pin connector...

Reply #33 – November 12, 2008, 09:23:41 PM

http://fordfuelinjection.com/?p=85 perhaps this will benifit

White 10 pin connector...

Reply #34 – November 13, 2008, 10:03:53 AM

Quote from: the_intimidator03;242793

http://fordfuelinjection.com/?p=85 perhaps this will benifit

Thanks, but that's old news to me :o sorry. I DO appreciate it though.

New development.....I've duplicated the effect with the grounds disconnected as they were when I started this.....

I've hooked all grounds up as they should be from Ford.

Got the code scanner to work. Other than the codes I knew I would get for items that no longer exist on my vehicle there was one that stuck out JUST a bit

Code 85
canister purge solenoid / adaptive lean limit reached in fuel control program

The way I typed it is exactly how it read on the Snap-On LCD screen. The first part.....well I SHOULD get that for reasons I'll not get into - and that is not cause for driveability issues.......The second.....disturbing.....I bumped the pressure back up to 48. She was happy there before so.....

Essentially what I've learned is that the ECU is in fact going into closed loop, but for some reason it now does a 30-45 second "shake your booty" dance before it gets there and is still a little choppy under no load/light load conditions after that. Heavy load and WOT are fine.

I have a couple of ideas...

I'll let you know what happens ;)

White 10 pin connector...

Reply #35 – November 13, 2008, 05:37:58 PM

You know I bet this wire is hooked up on my car. Thanks to you guys I'm going to go digging into my harness this weekend to find out :hick:

White 10 pin connector...

Reply #36 – November 13, 2008, 06:05:31 PM

Quote from: thunderjet302;242934

You know I bet this wire is hooked up on my car. Thanks to you guys I'm going to go digging into my harness this weekend to find out :hick:

Bet you it's not!!, I have an old harness from a stang, both of the white and black. there is no orange on one side but on the other there is "cut and taped". And paul that is one hell of a scanner that tells you adaptive stragety problem. Does it tell you how to cure it ?

White 10 pin connector...

Reply #37 – November 13, 2008, 06:26:36 PM

No. But pulling the HEGO harness connector while the engine is known to be warm enough for closed loop alleviates all issues....

The sensors MAY be reading the wrong banks....It's too dark for me to see the colors right now right now....Have to wait till daylight. Still hard to believe that the car was in open loop and never gave indication of HEGO codes.....

White 10 pin connector...

Reply #38 – November 13, 2008, 06:51:32 PM

i feel like i opened a whole can of worms with this thread:D

White 10 pin connector...

Reply #39 – November 13, 2008, 07:07:05 PM

ok,, im lost,, as usual.

the orange wire shows up on the evtm per my previous post.

now pretty much all of you are saying its flopping in the wind?
Im gonna have to check mine also.

White 10 pin connector...

Reply #40 – November 13, 2008, 07:19:32 PM

i pulled one from a 5.0 t - bird around the same year and the same orange wire seemed to be disconnected also, maybe just a coincidence?

White 10 pin connector...

Reply #41 – November 13, 2008, 08:09:51 PM

I don't believe it's coincidence......Here's why:

Here's the main engine harness as it sits in a MUSTANG

Now here's the MUSTANG HEGO harness:

That HEGO harness has some differences compared to the one in my car......

1) I have ground wires on each o2 connector. That one does not.
2) The wire colors in the picture do not correspond to what I see under my hood
3) That wire harness has a part # beginning with E8......

My hypothesis:

There are TWO (2) different HEGO harnesses......
Depending on which one was installed -- which was most likely through the vehicle type -- foretold whether or not the orange ground in the main engine harness was cut or hooked to the block. I realize there are different part #'s for auto and manual cars, but from what I understand, the difference is the main connector -- it varies from auto to manual cars.....

See here:

Take note of the black connector -- the one I have. The only one with a HEGO ground wire provision

Tomorrow I'll be swapping the o2 connectors to the opposite o2's......

I'll keep you posted

White 10 pin connector...

Reply #42 – November 13, 2008, 08:18:35 PM

let me know what happens man

White 10 pin connector...

Reply #43 – November 14, 2008, 07:49:15 AM

Ready kids?

Now if you'll look at pins #43 & #29 you can see the wire colors.....
Softtouch posted this in post #19 as well via the EVTM. Big thumbs up to him. I found it easier to read this though....and finally understood what he was getting at.

FWIW -- my sensors are indeed reversed......Redid the exhaust in September of last year....Was done by a shop that had to weld in the o2 sensor bungs. The limited driving of the car this past year -- maybe 2000 miles this past year -- and the fact it ran very well while in open kept me in the dark. When it stops raining I'll swap them.

Looks like my issue is solved -- just awaiting good weather.

White 10 pin connector...

Reply #44 – November 14, 2008, 06:56:52 PM

[SIZE="7"][COLOR="Red"]Fixed!!![/COLOR][/SIZE]

:burnout: :burnout: :burnout: :burnout: