Notices
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

External fuel pump

Thread Tools
 
Search this Thread
 
Old Jul 18, 2016 | 11:02 AM
  #421  
vjsimone's Avatar
vjsimone
Cargo Master
10 Year Member
Photogenic
Photoriffic
Liked
Joined: Jun 2013
Posts: 3,176
Likes: 15
From: Somewhere n North America
Originally Posted by sgauvry
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?
No.... Just check between the pipe that the O2 screws into, pos test lead, and the vehicle body, anywhere with Neg test lead. Rx200.
 
Reply
Old Jul 18, 2016 | 11:17 AM
  #422  
sgauvry's Avatar
sgauvry
Thread Starter
|
Senior User
Joined: Apr 2012
Posts: 452
Likes: 0
PICS

The first is a look at the engine.
The second is a look at the IAC. The third wire has been disconnected and is capped with a grey cap.
The third is a pic of the remote mounting in heat sink of the TFI module.
The 4th is the EGR setup. The shows the white O2 Connector and to it's right, the larger connector.











Originally Posted by ctubutis
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.
 
Attached Images     
Reply
Old Jul 18, 2016 | 11:18 AM
  #423  
sgauvry's Avatar
sgauvry
Thread Starter
|
Senior User
Joined: Apr 2012
Posts: 452
Likes: 0
For some reason they all posted upside down. Sorry!

Originally Posted by sgauvry
PICS

The first is a look at the engine.
The second is a look at the IAC. The third wire has been disconnected and is capped with a grey cap.
The third is a pic of the remote mounting in heat sink of the TFI module.
The 4th is the EGR setup. The shows the white O2 Connector and to it's right, the larger connector.
 
Reply
Old Jul 18, 2016 | 11:22 AM
  #424  
Gary Lewis's Avatar
Gary Lewis
FTE Legend
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Wire nuts??????
 
Reply
Old Jul 18, 2016 | 11:24 AM
  #425  
sgauvry's Avatar
sgauvry
Thread Starter
|
Senior User
Joined: Apr 2012
Posts: 452
Likes: 0
Temporary until I get the diode. Then I use butt crimps.
Originally Posted by Gary Lewis
Wire nuts??????
 
Reply
Old Jul 18, 2016 | 11:33 AM
  #426  
vjsimone's Avatar
vjsimone
Cargo Master
10 Year Member
Photogenic
Photoriffic
Liked
Joined: Jun 2013
Posts: 3,176
Likes: 15
From: Somewhere n North America
Originally Posted by vjsimone
No.... Just check between the pipe that the O2 screws into, pos test lead, and the vehicle body, anywhere with Neg test lead. Rx200.
Vehicles need to have a good ground connections. That’s why ground straps are added between the neg. batt. and the engine and the body. These connections get corroded and removed.

Your truck should have one from the back of the engine to the body, this one seems to disappear when engines are swapped or rebuilt.

Auto parts sells these straps for $6, or you can make them, but if you make them they must be soldered to last.
 
Reply
Old Jul 18, 2016 | 11:45 AM
  #427  
Gary Lewis's Avatar
Gary Lewis
FTE Legend
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Originally Posted by sgauvry
Then I use butt crimps.
Only marginally better. Crimps with a garden-variety crimp/strip/cut tool are frequently less than well formed and the wire can often be pulled out. Plus, there's no protection from the environment.

For wire-to-wire connections I solder them if they are smaller than about 6 gauge. For connections involving a terminal I solder smaller wires, like up to 6 gauge, after crimping the terminal on with a ratcheting crimper. And for battery cables I have a 16 ton hydraulic crimper. But in all cases I cover the joint with adhesive-lined heat shrink tubing. That ensures the connection is well protected from the environment.
 
Reply
Old Jul 18, 2016 | 11:51 AM
  #428  
vjsimone's Avatar
vjsimone
Cargo Master
10 Year Member
Photogenic
Photoriffic
Liked
Joined: Jun 2013
Posts: 3,176
Likes: 15
From: Somewhere n North America
Here is your missing Diode.






 

Last edited by vjsimone; Jul 18, 2016 at 11:54 AM. Reason: Adding Photo
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old Jul 18, 2016 | 11:54 AM
  #429  
sgauvry's Avatar
sgauvry
Thread Starter
|
Senior User
Joined: Apr 2012
Posts: 452
Likes: 0
I use butt crimps with heat shrink material as you can see in the photo (yellow) If I hear you correctly, you're saying these don't really do the job? Right?

Originally Posted by Gary Lewis
Only marginally better. Crimps with a garden-variety crimp/strip/cut tool are frequently less than well formed and the wire can often be pulled out. Plus, there's no protection from the environment.

For wire-to-wire connections I solder them if they are smaller than about 6 gauge. For connections involving a terminal I solder smaller wires, like up to 6 gauge, after crimping the terminal on with a ratcheting crimper. And for battery cables I have a 16 ton hydraulic crimper. But in all cases I cover the joint with adhesive-lined heat shrink tubing. That ensures the connection is well protected from the environment.
 
Reply
Old Jul 18, 2016 | 11:55 AM
  #430  
sgauvry's Avatar
sgauvry
Thread Starter
|
Senior User
Joined: Apr 2012
Posts: 452
Likes: 0
OK. What I ordered doesn't look like that, but I suppose it doesn't have to as long as it's a diode in acceptable range. Right?

Originally Posted by vjsimone
Here is your missing Diode.



 
Reply
Old Jul 18, 2016 | 11:59 AM
  #431  
sgauvry's Avatar
sgauvry
Thread Starter
|
Senior User
Joined: Apr 2012
Posts: 452
Likes: 0
Sorry, I still don't understand. Apply the jumper to 29 and ground - yes/no?

Then just use test leads, pos lead to pipe that O2 screws into, and body.


Originally Posted by vjsimone
No.... Just check between the pipe that the O2 screws into, pos test lead, and the vehicle body, anywhere with Neg test lead. Rx200.
 
Reply
Old Jul 18, 2016 | 12:01 PM
  #432  
vjsimone's Avatar
vjsimone
Cargo Master
10 Year Member
Photogenic
Photoriffic
Liked
Joined: Jun 2013
Posts: 3,176
Likes: 15
From: Somewhere n North America
Originally Posted by sgauvry
OK. What I ordered doesn't look like that, but I suppose it doesn't have to as long as it's a diode in acceptable range. Right?
I doubt you will find this style, unless you go to a junk yard. I know where one is, if you want to go that route, but for now I would go with what has been recommended.

I agree with Gary 100%, you need to solder all connections eventually.
 
Reply
Old Jul 18, 2016 | 12:04 PM
  #433  
vjsimone's Avatar
vjsimone
Cargo Master
10 Year Member
Photogenic
Photoriffic
Liked
Joined: Jun 2013
Posts: 3,176
Likes: 15
From: Somewhere n North America
Originally Posted by sgauvry
Sorry, I still don't understand. Apply the jumper to 29 and ground - yes/no?

Then just use test leads, pos lead to pipe that O2 screws into, and body.
forget pin 29..........

I am looking for you to prove a good ground between your exhaust pipe (near your O2) and your truck body.
 
Reply
Old Jul 18, 2016 | 12:07 PM
  #434  
Gary Lewis's Avatar
Gary Lewis
FTE Legend
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Originally Posted by sgauvry
I use butt crimps with heat shrink material as you can see in the photo (yellow) If I hear you correctly, you're saying these don't really do the job? Right?
Yes and no. The factory crimped terminals on, so it is possible to get a good crimped connection. But, they used crimpers that apply far more pressure and have a much better profile than the garden-variety crimpers do. Using the latter I've been able to pull the wire out on many crimps, and that means the crimp isn't even close to being good. A good crimp is stronger than the wire and cannot be pulled out.

As for heat shrink tubing, there are at least two varieties of it - with and without adhesive. Without the adhesive the covering isn't waterproof, but with it the connection is well protected. Here's what I use: https://www.amazon.com/Swordfish-612...+shrink+tubing
 
Reply
Old Jul 18, 2016 | 12:09 PM
  #435  
vjsimone's Avatar
vjsimone
Cargo Master
10 Year Member
Photogenic
Photoriffic
Liked
Joined: Jun 2013
Posts: 3,176
Likes: 15
From: Somewhere n North America
Originally Posted by vjsimone
forget pin 29..........

I am looking for you to prove a good ground between your exhaust pipe (near your O2) and your truck body.
Grab your meter, crawl under your truck, select Rx200 ohm, poke the red test lead into the body of your truck, poke the black test lead into the pipe where the O2 screws in, record the reading.
 
Reply



All times are GMT -5. The time now is 02:30 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE