Duramax Diesels Forum Truck of the Week
  #16  
Old 09-24-2016, 12:14 PM
01Dura6.6's Avatar
01Dura6.6 01Dura6.6 is offline
Retired Air Force
 
Join Date: Aug 2016
Posts: 38
Default

So I just pulled a boat 500 miles. Woke up this morning stayed the truck. Went about 2 miles and service engine light came on. Code was P0089 Fuel Pressure Regulator 1 Performance. I've been reading on it and it seems like a lot of different fixes. Could this be due to the upgrades I just did? Everything in my signature is what I just had done.
__________________
01 sierra 2500hd
Downpipe back 4" mbrp exhaust
S&b intake
Efi live tune
Edge cts
PPE Boost valve
Fass 150 fuel pump/filter

Southwest Diesel Performance
Reply With Quote
  #17  
Old 09-24-2016, 12:19 PM
NRA223 NRA223 is offline
Hotrodder
 
Join Date: May 2015
Posts: 289
Default

Is it loping at idle?
__________________
01 ECSB LB7 4x4
Stealth 64 Turbo
30% Exergy Injectors
Exergy LBZ Sportsman
Built Trans
Built front end
Other supporting mods
Reply With Quote
  #18  
Old 09-24-2016, 12:38 PM
01Dura6.6's Avatar
01Dura6.6 01Dura6.6 is offline
Retired Air Force
 
Join Date: Aug 2016
Posts: 38
Default

Nope. No power loss. No funky idle. It is shifting weird. Could that be due to the new upgrades with the extra power and it learning the shift points all over. Fuel rail pressure is good to. I just used the edge cts to clear the code and it hasn't come back yet.
__________________
01 sierra 2500hd
Downpipe back 4" mbrp exhaust
S&b intake
Efi live tune
Edge cts
PPE Boost valve
Fass 150 fuel pump/filter

Southwest Diesel Performance
Reply With Quote
  #19  
Old 09-24-2016, 12:51 PM
Burn Down's Avatar
Burn Down Burn Down is offline
Hotrodder
 
Join Date: Sep 2008
Location: Boise Idaho
Posts: 6,608

Default

Sounds like the lift pump pressure may be a touch high. When that happens it can force the FPR open. It usually causes the truck to lope at idle but not always. Anyway to verify the pump pressure?
__________________
04.5 CCSB ole blue, built trans, mpi twins
03 Reg Cab ZF 6
05 CCSB ole crappy, built eng, built trans, mpi twins
Reply With Quote
  #20  
Old 09-24-2016, 12:58 PM
NRA223 NRA223 is offline
Hotrodder
 
Join Date: May 2015
Posts: 289
Default

Like stated above LB7/LLY fprs dont like more than about 10 psi from a lift pump. When i put my lift pump on I didn't know that and it was set at 15 psi and the fpr went out 3 days later. Mine loped bad at idle though so maybe yours is just unhappy and not shot like mine was.
__________________
01 ECSB LB7 4x4
Stealth 64 Turbo
30% Exergy Injectors
Exergy LBZ Sportsman
Built Trans
Built front end
Other supporting mods
Reply With Quote
  #21  
Old 09-24-2016, 01:31 PM
01Dura6.6's Avatar
01Dura6.6 01Dura6.6 is offline
Retired Air Force
 
Join Date: Aug 2016
Posts: 38
Default

Ok I'll keep an eye on it. Also while I have you guys. The allison tranny. What's a solid operating temp. It was 73 and I was driving through the hills and it was hitting 188. Seems high for no load or not?
__________________
01 sierra 2500hd
Downpipe back 4" mbrp exhaust
S&b intake
Efi live tune
Edge cts
PPE Boost valve
Fass 150 fuel pump/filter

Southwest Diesel Performance
Reply With Quote
  #22  
Old 10-01-2016, 08:44 AM
01Dura6.6's Avatar
01Dura6.6 01Dura6.6 is offline
Retired Air Force
 
Join Date: Aug 2016
Posts: 38
Default

How do i adjust the lift pump?
__________________
01 sierra 2500hd
Downpipe back 4" mbrp exhaust
S&b intake
Efi live tune
Edge cts
PPE Boost valve
Fass 150 fuel pump/filter

Southwest Diesel Performance
Reply With Quote
  #23  
Old 10-01-2016, 09:00 AM
NRA223 NRA223 is offline
Hotrodder
 
Join Date: May 2015
Posts: 289
Default

I've never had a Fass so I can't help you there. My Raptor has an adjustment screw on the side. I had a fuel pressure gauge on my filter head until I switched to an lbz regulator
__________________
01 ECSB LB7 4x4
Stealth 64 Turbo
30% Exergy Injectors
Exergy LBZ Sportsman
Built Trans
Built front end
Other supporting mods
Reply With Quote
  #24  
Old 10-01-2016, 09:09 AM
01Dura6.6's Avatar
01Dura6.6 01Dura6.6 is offline
Retired Air Force
 
Join Date: Aug 2016
Posts: 38
Default

Alright. My light popped in again with the same code so I'm going to look at what psi it's running. I'm assuming it's probably a little over 10 and that's why the lights on
__________________
01 sierra 2500hd
Downpipe back 4" mbrp exhaust
S&b intake
Efi live tune
Edge cts
PPE Boost valve
Fass 150 fuel pump/filter

Southwest Diesel Performance
Reply With Quote
  #25  
Old 10-01-2016, 10:53 AM
01Dura6.6's Avatar
01Dura6.6 01Dura6.6 is offline
Retired Air Force
 
Join Date: Aug 2016
Posts: 38
Default

so i realized when i got under there it did not come with a gauge. I have been looking and can't find a good place to buy one. Where is a good place to by one that will fit it correctly?
__________________
01 sierra 2500hd
Downpipe back 4" mbrp exhaust
S&b intake
Efi live tune
Edge cts
PPE Boost valve
Fass 150 fuel pump/filter

Southwest Diesel Performance
Reply With Quote
  #26  
Old 10-01-2016, 02:08 PM
WolfLLY's Avatar
WolfLLY WolfLLY is offline
Making Chips
 
Join Date: Nov 2006
Location: AL
Posts: 4,226

Default

There is a spring in the return fitting, it needs to be shortened to decrease pressure. Mine is too high as well.
__________________
LMM CCSB LTZ Z71. SoCal motor, s485/68r, 1078 Limitless converter, S&S 200s.


LB7 ECSB 4X4

Thanks to Evan@Limitless, Mark@Danville Performance, Josh Harris@Top Notch, and Corbin(crussel)
Reply With Quote
  #27  
Old 10-01-2016, 02:26 PM
01Dura6.6's Avatar
01Dura6.6 01Dura6.6 is offline
Retired Air Force
 
Join Date: Aug 2016
Posts: 38
Default

Quote:
Originally Posted by WolfLLY View Post
There is a spring in the return fitting, it needs to be shortened to decrease pressure. Mine is too high as well.
Should.I hook up a gauge to make sure? Or is that most likely the issue with the engine light.
__________________
01 sierra 2500hd
Downpipe back 4" mbrp exhaust
S&b intake
Efi live tune
Edge cts
PPE Boost valve
Fass 150 fuel pump/filter

Southwest Diesel Performance
Reply With Quote
  #28  
Old 10-01-2016, 03:47 PM
Burn Down's Avatar
Burn Down Burn Down is offline
Hotrodder
 
Join Date: Sep 2008
Location: Boise Idaho
Posts: 6,608

Default

A gauge would be best But If I didn't have one and just wanted to test it, back the screw out 1/2 turn and see if your light pops back on.
__________________
04.5 CCSB ole blue, built trans, mpi twins
03 Reg Cab ZF 6
05 CCSB ole crappy, built eng, built trans, mpi twins
Reply With Quote
  #29  
Old 10-01-2016, 04:05 PM
WolfLLY's Avatar
WolfLLY WolfLLY is offline
Making Chips
 
Join Date: Nov 2006
Location: AL
Posts: 4,226

Default

I agree Albert, but the fass doesn't have a screw to back out. The pressure regulator is a spring in the return port on mine. You can take it out and collapse it with some pliers and see if your issues goes away. Make sure to take a measurement of the spring before you mess with it. I'm 99.9% sure that's your problem. 11 psi is the factory setting and it is too high for the lb7 regulator to over come, esp an old tired FPR.
__________________
LMM CCSB LTZ Z71. SoCal motor, s485/68r, 1078 Limitless converter, S&S 200s.


LB7 ECSB 4X4

Thanks to Evan@Limitless, Mark@Danville Performance, Josh Harris@Top Notch, and Corbin(crussel)
Reply With Quote
  #30  
Old 10-01-2016, 04:25 PM
01Dura6.6's Avatar
01Dura6.6 01Dura6.6 is offline
Retired Air Force
 
Join Date: Aug 2016
Posts: 38
Default

Quote:
Originally Posted by WolfLLY View Post
I agree Albert, but the fass doesn't have a screw to back out. The pressure regulator is a spring in the return port on mine. You can take it out and collapse it with some pliers and see if your issues goes away. Make sure to take a measurement of the spring before you mess with it. I'm 99.9% sure that's your problem. 11 psi is the factory setting and it is too high for the lb7 regulator to over come, esp an old tired FPR.
What if i upgraded the FPR. would this eliminate the problem or the would the ecu keep reading that the pressure is too high? If so what FPR should i go with.

Also i can't find anywhere on the web on where to adjust that spring or what fuel gauge to buy to see what it is putting out.
__________________
01 sierra 2500hd
Downpipe back 4" mbrp exhaust
S&b intake
Efi live tune
Edge cts
PPE Boost valve
Fass 150 fuel pump/filter

Southwest Diesel Performance
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 12:00 AM.


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