External fuel pump
Cargo Master
Joined: Jun 2013
Posts: 3,182
Likes: 15
From: Somewhere n North America
Your engine must be fully warmed up when performing the KOER Self-Test.
EGR does not operate if engine is cold, or during Idle, and I don't think during WOT, Wide Open Throttle events, testing or on the road.
EGR does not operate if engine is cold, or during Idle, and I don't think during WOT, Wide Open Throttle events, testing or on the road.
Thread Starter
|
Senior User
Joined: Apr 2012
Posts: 452
Likes: 0
Engine was warm but I will run test again.
Cargo Master
Joined: Jun 2013
Posts: 3,182
Likes: 15
From: Somewhere n North America
The O2 sensor connector (single wire has a very short wire that runs to a larger, four-pronged connector. That connects to the female connector (also 4 prongs). It seems the connection inside the female connector is faulty. If I hold the voltmeter probe tight inside the female (that sounds like fun) I get a .5 reading. If I loosen it up just the slightest or don't hold it extremely tight, I get a 1. I suspect the female is not making good contact with the male (sound like my marriage sometimes).
Can I pull the single wire and female connector out of the larger connector, or must I replace the whole connector?
Can I pull the single wire and female connector out of the larger connector, or must I replace the whole connector?
0.5 ohm is not bad, but you need that on the O2 side of the connector.
Thread Starter
|
Senior User
Joined: Apr 2012
Posts: 452
Likes: 0
Yes. It's well cleaned and filled with deelectric. Connection made! Yeah, man!!! Now I have to go get an O2 sensor. I'll check advanced auto or auto zone.
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Thread Starter
|
Senior User
Joined: Apr 2012
Posts: 452
Likes: 0
I don't own a camera and my wife's works sporadically. I can use her iPad when she lets me.
What pics are you wanting?
What pics are you wanting?
Thread Starter
|
Senior User
Joined: Apr 2012
Posts: 452
Likes: 0
I will do another KOER test.
After, if I still get a 34 reading, I'll try to do some of the vacuum checks you suggested. I'll have to by a gauge but I don't imagine they're too expensive.
After, if I still get a 34 reading, I'll try to do some of the vacuum checks you suggested. I'll have to by a gauge but I don't imagine they're too expensive.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Cargo Master
Joined: Jun 2013
Posts: 3,182
Likes: 15
From: Somewhere n North America
You can attach your old O2 connector & wire to the new O2, but unless you use an uncoated barrel crimp and solder the crimp, then it won't last long before corrosion set in.
You can cut the plastic off of a plastic barrel crimp connection and solder that.
NAPA carries 4 sizes of bare barrel crimp connectors.
You have any soldering skills?
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
Other than what has been posted, I've not seen any internal schematics. If you could email what you have fit the Bullnose trucks to janeyandgary@gmail.com I'll add them to my web site.
I have tried to clean it up some to make the numbers more readable but have not done doing that yet.
I am sure you must have already seen it on line but will send you both. The one I have not touched one and the one that I have touched up.
Cargo Master
Joined: Jun 2013
Posts: 3,182
Likes: 15
From: Somewhere n North America
You still need to check continuity between your "Y" pipe and Body ground.
Rx200, one test lead on the "Y" pipe and the other on the Body.
Last edited by vjsimone; Jul 18, 2016 at 10:44 AM. Reason: Adding text
Moderator
Joined: Nov 2007
Posts: 22,415
Likes: 92
From: Denver Metro Area, CO
I'm not looking for anything specifically but, in general, it might help guys here more quickly see exactly what you're using a lot of text to describe, connectors & wire colors & such.
Thread Starter
|
Senior User
Joined: Apr 2012
Posts: 452
Likes: 0
Yes, I can solder. I just did a quick fix until I get a new sensor. Wire is attached using a crimp and is attached well for the time being.
Ran KOER test with engine at operating temp - temp gauge in the middle. Pulled 41 and 34. Ran it three times in all. Same codes.
Several things in the works. Waiting for diode for the IAC. Waiting the for computer, although I suspect I don't need it. Waiting for new O2 sensor. I ordered one with an extra long pig-tail. The reason: I have headers and am mounting the O2 sensor before the cat converter. Unfortunately, the exhaust from the driver side is not captured in the O2 sensor because I mounted the sensor just before the Y tube that connects both exhaust to the cat. Dumb move, I know.
Ran KOER test with engine at operating temp - temp gauge in the middle. Pulled 41 and 34. Ran it three times in all. Same codes.
Several things in the works. Waiting for diode for the IAC. Waiting the for computer, although I suspect I don't need it. Waiting for new O2 sensor. I ordered one with an extra long pig-tail. The reason: I have headers and am mounting the O2 sensor before the cat converter. Unfortunately, the exhaust from the driver side is not captured in the O2 sensor because I mounted the sensor just before the Y tube that connects both exhaust to the cat. Dumb move, I know.
Some of those places do not have an O2 Sensor with a connector on it. Rock Auto carries an O2 with connector attached.
You can attach your old O2 connector & wire to the new O2, but unless you use an uncoated barrel crimp and solder the crimp, then it won't last long before corrosion set in.
You can cut the plastic off of a plastic barrel crimp connection and solder that.
NAPA carries 4 sizes of bare barrel crimp connectors.
You have any soldering skills?
You can attach your old O2 connector & wire to the new O2, but unless you use an uncoated barrel crimp and solder the crimp, then it won't last long before corrosion set in.
You can cut the plastic off of a plastic barrel crimp connection and solder that.
NAPA carries 4 sizes of bare barrel crimp connectors.
You have any soldering skills?
Thread Starter
|
Senior User
Joined: Apr 2012
Posts: 452
Likes: 0
So let me run through this with you.
I use the jumper between ground and pin 29.
And I apply the voltmeter to the y pipe (?) and the other lead to the frame or body.
Oh - the O2 sensor is connected to the pipe and therefore forms a ground. Right?
I use the jumper between ground and pin 29.
And I apply the voltmeter to the y pipe (?) and the other lead to the frame or body.
Oh - the O2 sensor is connected to the pipe and therefore forms a ground. Right?
Cargo Master
Joined: Jun 2013
Posts: 3,182
Likes: 15
From: Somewhere n North America
Yes, I can solder. I just did a quick fix until I get a new sensor. Wire is attached using a crimp and is attached well for the time being.
Ran KOER test with engine at operating temp - temp gauge in the middle. Pulled 41 and 34. Ran it three times in all. Same codes.
Several things in the works. Waiting for diode for the IAC. Waiting the for computer, although I suspect I don't need it. Waiting for new O2 sensor. I ordered one with an extra long pig-tail. The reason: I have headers and am mounting the O2 sensor before the cat converter. Unfortunately, the exhaust from the driver side is not captured in the O2 sensor because I mounted the sensor just before the Y tube that connects both exhaust to the cat. Dumb move, I know.
Ran KOER test with engine at operating temp - temp gauge in the middle. Pulled 41 and 34. Ran it three times in all. Same codes.
Several things in the works. Waiting for diode for the IAC. Waiting the for computer, although I suspect I don't need it. Waiting for new O2 sensor. I ordered one with an extra long pig-tail. The reason: I have headers and am mounting the O2 sensor before the cat converter. Unfortunately, the exhaust from the driver side is not captured in the O2 sensor because I mounted the sensor just before the Y tube that connects both exhaust to the cat. Dumb move, I know.
Check your O2 pipe location to body ground continuity when you get the chance.
The reason the Auto Industry moved from 1 wire to 2 wire O2 sensors was due to the poor ground from the exhaust system. The second wire was a ground wire. Same issue with A/C compessors, first ones were 1 wire, then they added a ground wire.