Injectors 1,5,7 aren’t firing - Page 2 - Ford Powerstroke Diesel Forum
 6Likes
Reply
 
LinkBack Thread Tools Display Modes
post #11 of 22 Old 09-09-2019, 01:49 PM Thread Starter
Powerstroke.org Rookie
 
Miles Kreh's Avatar
 
Join Date: Aug 2019
Posts: 19
Thanks: 2
Thanked 0 Times in 0 Posts
Mentioned: 1 Post(s)
Quoted: 2 Post(s)
Feedback Score: 0 reviews
@Patrick Feeley yes I have seen that procedure before. I’ve done that test and every injector reads out to 3.0 and the other wires are open. I have not replaced the pigtails because they are in good shape but I have a couple replacements somewhere.

Last edited by Miles Kreh; 09-09-2019 at 01:53 PM.
Miles Kreh is offline  
Sponsored Links
Advertisement
 
post #12 of 22 Old 09-09-2019, 05:31 PM
Compression Ignition Addict
 
Patrick Feeley's Avatar
 
Join Date: Oct 2011
Location: Tehachapi, CA
Posts: 2,745
Thanks: 0
Thanked 165 Times in 160 Posts
Mentioned: 6 Post(s)
Quoted: 79 Post(s)
Feedback Score: 0 reviews
Not suggesting you replace them, just wondering if the wiring is in the correct order. Are the UVCHs OEM? There have been reports of some aftermarket ones being wired incorrectly. Cheers!
Patrick Feeley is offline  
post #13 of 22 Old 09-09-2019, 05:35 PM Thread Starter
Powerstroke.org Rookie
 
Miles Kreh's Avatar
 
Join Date: Aug 2019
Posts: 19
Thanks: 2
Thanked 0 Times in 0 Posts
Mentioned: 1 Post(s)
Quoted: 2 Post(s)
Feedback Score: 0 reviews
@Patrick Feeley Yes the UVCHs are brand new motor craft parts. I’ve made sure that everything important has been oem. Is there any way to check the idm? I’m just totally stumped what could cause 1,5,7 to missfire but not 3.
Miles Kreh is offline  
Sponsored Links
Advertisement
 
post #14 of 22 Old 09-09-2019, 05:37 PM Thread Starter
Powerstroke.org Rookie
 
Miles Kreh's Avatar
 
Join Date: Aug 2019
Posts: 19
Thanks: 2
Thanked 0 Times in 0 Posts
Mentioned: 1 Post(s)
Quoted: 2 Post(s)
Feedback Score: 0 reviews
@Hydro are the aftermarket idms known to go bad? I have a 120volt reman one that’s relatively new. It was replaced about a year ago from the guy who owned the truck before me.
Miles Kreh is offline  
post #15 of 22 Old 09-10-2019, 10:30 AM
Compression Ignition Addict
 
Patrick Feeley's Avatar
 
Join Date: Oct 2011
Location: Tehachapi, CA
Posts: 2,745
Thanks: 0
Thanked 165 Times in 160 Posts
Mentioned: 6 Post(s)
Quoted: 79 Post(s)
Feedback Score: 0 reviews
I would guess its the IDM, but Ö.. If you know of someone with a known good IDM, maybe try that one. Years ago I bought 2 IDMs off ebay for $50 each. They are my spares in the toolbox. Cheers!
[email protected] likes this.
Patrick Feeley is offline  
post #16 of 22 Old 09-10-2019, 09:34 PM Thread Starter
Powerstroke.org Rookie
 
Miles Kreh's Avatar
 
Join Date: Aug 2019
Posts: 19
Thanks: 2
Thanked 0 Times in 0 Posts
Mentioned: 1 Post(s)
Quoted: 2 Post(s)
Feedback Score: 0 reviews
@Patrick Feeley I bribed a buddy to let me borrow his idm by helping with the 3 inch downpipe conversion. That was worse than I remember. Anyway my truck acted the same if not worse with his idm and his truck ran perfectly with mine. I’m completely stuck. The pcm has corrosion on it but not on any of the internals. Idk at this point
Miles Kreh is offline  
post #17 of 22 Old 09-11-2019, 10:44 AM
Compression Ignition Addict
 
Patrick Feeley's Avatar
 
Join Date: Oct 2011
Location: Tehachapi, CA
Posts: 2,745
Thanks: 0
Thanked 165 Times in 160 Posts
Mentioned: 6 Post(s)
Quoted: 79 Post(s)
Feedback Score: 0 reviews
That is really puzzling! If it is not the IDM (which looks like you have ruled that out), and the injector wiring is good end-to-end, I would probably look for another PCM to try. What year truck and transmission do you have? Cheers!
Patrick Feeley is offline  
post #18 of 22 Old 09-11-2019, 11:26 AM
Premium Member


 
partyman97_3's Avatar
 
Join Date: Dec 2015
Location: Peoria, il
Posts: 2,274
Thanks: 56
Thanked 217 Times in 214 Posts
Mentioned: 37 Post(s)
Quoted: 888 Post(s)
Garage
Feedback Score: 0 reviews
Maybe Sean will chime in. He is our resident 6.0 guy, but he will know the 7.3. @LoxDiesel

2003 F-350, CC, LB, 285/75/16, Autometer Gages, Fox 2.0's (Thanks to Corey), Sninister Bypass Coolant Filter, 4" Turbo Back,Leece-Neville 230 Amp Alternator, 6.4 litre starter





To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
partyman97_3 is offline  
post #19 of 22 Old 09-11-2019, 01:49 PM
Powerstroke.org Fanatic
 
Join Date: Aug 2014
Posts: 115
Thanks: 4
Thanked 2 Times in 2 Posts
Mentioned: 1 Post(s)
Quoted: 12 Post(s)
Feedback Score: 0 reviews
I had a similar problem and found the harness from the main connector to the valve covers to be the culprit. I unwrapped each side and found wiring that was oil soaked and the insulation just about all gone on 3- 4 injector wires. Cut the bad wire out and solder new wire in. Do one at a time as not to get things wired wrong. The drivers side was worse as the pcv elbow was hard and leaking oil onto the harness. It will take a couple of hours to do it right but once complete, problem solved.
PDR60 is offline  
post #20 of 22 Old 09-11-2019, 01:51 PM Thread Starter
Powerstroke.org Rookie
 
Miles Kreh's Avatar
 
Join Date: Aug 2019
Posts: 19
Thanks: 2
Thanked 0 Times in 0 Posts
Mentioned: 1 Post(s)
Quoted: 2 Post(s)
Feedback Score: 0 reviews
@PDR60 That’s what my teacher told me to check. I’m about to go take a look at it.
Miles Kreh is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome