Need help with Single Shot Injectors - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 04-12-2014, 07:41 AM
Compression Ignition Addict
 

Join Date: Jul 2009
Location: Oregon
Posts: 414
Thanks: 0
Thanked 9 Times in 7 Posts
Feedback Score: 0 reviews
Need help with Single Shot Injectors- SOLVED

Six weeks ago I installed Full Force Reman Single Shot 160cc. I went with TW tunes which I am running on a Hydra. My problem are multi-faceted but I will try to describe them the best I can. Also I am on my 1st set of revised tunes from TW and they still aren't quite right.

1) As soon as I put the truck in drive the rpms jump up to 900-950 and won't come back down until it's back in park for a couple of minutes.

2) Throttle is really touchy. When the torque converter is locked if I let off/on the throttle it results in a hard jerk through the entire drivetrain. It feels a lot like differential lash but I know it's not as I did not have this issue with the stock injectors. Also because the throttle is so touchy cruise control is almost impossible cause the truck starts bucking trying to maintain light throttle.

3) When coasting between 15-30mph the idle hangs at 1,000rpms and sounds like the injectors are cutting in/out constantly. Its really, really annoying.

4) The SES light flashes randomly all the time and I am getting a P1316 code. I never had this code prior to the single shot injectors. And when I installed them I put in all new OEM harnesses/gaskets in. I have ohm tested and buzz tested the injectors with no faults detected. This one has me absolutely stumped.

I would appreciate any help, at this point I am really regretting putting in single shots as my truck runs worse now that it did with worn out AD's.

Last edited by blderman; 04-18-2014 at 07:31 AM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 04-12-2014, 07:53 AM
Compression Ignition Addict
 

Join Date: Oct 2011
Location: Chico, California
Posts: 3,352
Thanks: 14
Thanked 90 Times in 86 Posts
Feedback Score: 0 reviews
id say get get different tunes.

but the code is idm/uvch related

Last edited by blue99stroker; 04-12-2014 at 07:56 AM.
Reply With Quote Quick reply to this message
  #3  
Old 04-12-2014, 08:08 AM
Compression Ignition Addict
 

Join Date: Oct 2008
Location: Abbotsford
Posts: 2,216
Thanks: 16
Thanked 86 Times in 79 Posts
Feedback Score: 0 reviews
Take out the chip to figure out if its tunes or your truck.

Yes it will idle a little rough, but not nearly as bad as what you're describing.
If it runs better without the chip, try another tuner
If it still sucks without the chip, I would take off the valve covers and be sure you got everything hooked up correctly.

My money is on a slightly loose harness connection.

Check fuel pressure too. Injectors are too expensive to not know that your FP is good.

Last edited by Joel; 04-12-2014 at 08:14 AM.
Reply With Quote Quick reply to this message
  #4  
Old 04-12-2014, 11:48 AM
Compression Ignition Addict
 

Join Date: Jul 2009
Location: Oregon
Posts: 414
Thanks: 0
Thanked 9 Times in 7 Posts
Feedback Score: 0 reviews
Truck idles much worse without the Hydra.

Took everything apart two weeks ago and checked all the connections; everything was good.

Fuel Pressure is 65psi.

Does any of the tuners offer a try before you buy?

I think I will get to the IDM tonight and try some testing on it. Just so strange that I never had a single IDM code with my stock injectors and old harnesses.
Reply With Quote Quick reply to this message
  #5  
Old 04-12-2014, 01:19 PM
Premium Member
 

Join Date: Apr 2012
Location: Stratford, Ontario
Posts: 2,230
Thanks: 32
Thanked 123 Times in 109 Posts
Feedback Score: 0 reviews
That 1316 code could be the answer to all of this. You need to run a contribution test, buzz test, check fuel pressure.

That code means the IDM is not happy. The IDM isn't happy because something is wrong in the fuel system.
Reply With Quote Quick reply to this message
  #6  
Old 04-12-2014, 04:17 PM
Compression Ignition Addict
 

Join Date: Jul 2009
Location: Oregon
Posts: 414
Thanks: 0
Thanked 9 Times in 7 Posts
Feedback Score: 0 reviews
Buzz test, contribution test and ohm test of the wiring at the 42 pin connector all come
back good.
Reply With Quote Quick reply to this message
  #7  
Old 04-12-2014, 04:27 PM
Premium Member
 

Join Date: Apr 2012
Location: Stratford, Ontario
Posts: 2,230
Thanks: 32
Thanked 123 Times in 109 Posts
Feedback Score: 0 reviews
What numbers did you get from the contribution test?

And at this point I think calling the injector builder and getting their input is best
Reply With Quote Quick reply to this message
  #8  
Old 04-12-2014, 04:33 PM
Compression Ignition Addict
 

Join Date: Jul 2009
Location: Oregon
Posts: 414
Thanks: 0
Thanked 9 Times in 7 Posts
Feedback Score: 0 reviews
Contribution test showed a cylinders under 1% deviation. I have talked with Matt @ FF over email a few times but haven't got any resolution through him yet.
Reply With Quote Quick reply to this message
  #9  
Old 04-12-2014, 06:33 PM
Compression Ignition Addict
 

Join Date: Jul 2009
Location: Oregon
Posts: 414
Thanks: 0
Thanked 9 Times in 7 Posts
Feedback Score: 0 reviews
Just took out my IDM and tested all the circuits going through the IDM harness per the GB tech bulletin and found no issues. IDM is dry and well sealed.
Reply With Quote Quick reply to this message
  #10  
Old 04-14-2014, 04:30 PM
Compression Ignition Addict
 

Join Date: Jul 2009
Location: Oregon
Posts: 414
Thanks: 0
Thanked 9 Times in 7 Posts
Feedback Score: 0 reviews
Did some data logging on the way home today. I noticed the at idle the accelerator position is 11.43%. When I step on the pedal I have to get to 22% before I get a raise in RPMs and at that point it jumps to 1,300 RPMs. What would cause a dead spot even though the computer clearly sees the pedal movement?
Reply With Quote Quick reply to this message
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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

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



All times are GMT -8. The time now is 08:38 PM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors