Duramax Diesels Forum Truck of the Week
  #91  
Old 06-22-2018, 10:51 AM
Tylerrc34 Tylerrc34 is offline
Gearhead
 
Join Date: Jun 2018
Posts: 48
Default

Quote:
Originally Posted by 2004LB7 View Post
Put a clear line on after the filter and see if you are getting bubbles / air in the line
Good idea. That should let me know if my air intrusion issue is pre filter or post filter.

I lost prime again and can't get it back. I hear a puff of air come out when I unscrew the water drain on the fuel filter. I think air is getting into the filter somehow. Maybe I need to put in new o-rings again.
Reply With Quote
  #92  
Old 06-22-2018, 11:05 AM
2004LB7's Avatar
2004LB7 2004LB7 is offline
Hotrodder
 
Join Date: Dec 2010
Location: Norcal
Posts: 1,308

Default

Quote:
Originally Posted by Tylerrc34 View Post
I don't have either, just an Actron pocket scanner. Looks like EFIlive is $993 on Amazon
If you are interested in purchasing one, get it straight from the source:
http://www.efilive.com/flashscan (cheaper than $993) or a vendor here
__________________
2008 Chevrolet 3500HD DRW LTZ
285/75/17 Nitto Dura Grapplers, 4.56 gears, Front and rear ARB lockers, Efi Live tuning by me, Raptor 160 LP, Cognito 4-6 NTB Lift, 4" Exhaust, Built Trans by Mike L.

2006 BRM Jetta TDI. Injectors, turbo, Malone custom tuning on ecm and tcm
Reply With Quote
  #93  
Old 06-22-2018, 11:08 AM
2004LB7's Avatar
2004LB7 2004LB7 is offline
Hotrodder
 
Join Date: Dec 2010
Location: Norcal
Posts: 1,308

Default

Quote:
Originally Posted by Tylerrc34 View Post
Good idea. That should let me know if my air intrusion issue is pre filter or post filter.

I lost prime again and can't get it back. I hear a puff of air come out when I unscrew the water drain on the fuel filter. I think air is getting into the filter somehow. Maybe I need to put in new o-rings again.
I primed mine with the bleed screw loose until fuel comes out then tighten the screw and pump some more until the bulb gets hard to push down. I sometimes have to do the second part several times after cranking it over until it starts. Of course I don't have to do any of this now that I have a lift pump
__________________
2008 Chevrolet 3500HD DRW LTZ
285/75/17 Nitto Dura Grapplers, 4.56 gears, Front and rear ARB lockers, Efi Live tuning by me, Raptor 160 LP, Cognito 4-6 NTB Lift, 4" Exhaust, Built Trans by Mike L.

2006 BRM Jetta TDI. Injectors, turbo, Malone custom tuning on ecm and tcm
Reply With Quote
  #94  
Old 06-22-2018, 05:11 PM
Tylerrc34 Tylerrc34 is offline
Gearhead
 
Join Date: Jun 2018
Posts: 48
Default

I really appreciate your insight 2004LB7

I hooked up a clear hose between the fuel filter and the CP3. It seems as if the problem is on the injector side of the filter and prime doesn't seem to be an issue. When cranking the engine over, the fluid kept its prime and there were no air bubbles. I didn't take a video of cranking but I took one of the setup.

https://www.youtube.com/watch?v=PSUXmtph9kA

I'm exhausted so I'm not going back out there today but I'll have all evening to research possible solutions.

I'm just wondering how I got the truck to run for 20 minutes and now I can't get it running again and there's definitely fuel getting to the injectors. What do you think about the fuel pressure regulator malfunctioning? Wouldn't that cause max psi and account for the white smoke out of the tailpipe?

I had three new codes pop up before quitting for the day...

P0090 Fuel Pressure Regulator 1 Control Circuit Open
P0193 Fuel Rail Pressure Sensor A Circuit High
P0540 Intake Air Heater "A" Circuit

Last edited by Tylerrc34; 06-22-2018 at 05:17 PM.
Reply With Quote
  #95  
Old 06-22-2018, 10:22 PM
2004LB7's Avatar
2004LB7 2004LB7 is offline
Hotrodder
 
Join Date: Dec 2010
Location: Norcal
Posts: 1,308

Default

No need to spill fuel all over. When you start getting fuel at the bleed screw, close it and keep pumping. You want to get the primer firm. Then crank. Go back and prime it again. Dont open the bleed screw. Crank again. You may need to do this several times

For your codes. Have a look at your harness. You did mention you took it all apart so maybe something got missed or loose

You may need to get ahold of a better scanner that can show you fuel pressure and other parameters to better diagnosis you issues

If your injectors are still healthy, a big if based on your cleaning method, max fuel pressure shouldn't cause that much, if any, white smoke

The white smoke is ether unburnt fuel or water/coolant. You should be able to tell based on smell. If fuel then you likely have one or more stuck injectors. This very well could be a reason for difficulty in getting it started
__________________
2008 Chevrolet 3500HD DRW LTZ
285/75/17 Nitto Dura Grapplers, 4.56 gears, Front and rear ARB lockers, Efi Live tuning by me, Raptor 160 LP, Cognito 4-6 NTB Lift, 4" Exhaust, Built Trans by Mike L.

2006 BRM Jetta TDI. Injectors, turbo, Malone custom tuning on ecm and tcm
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -7. The time now is 12:43 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
vB.Sponsors