Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

P0089 Fuel Pressure Regulator Performance

Thread Tools
 
Search this Thread
 
  #1  
Old 08-20-2010, 09:17 PM
ironworker's Avatar
Diesel Fan
Thread Starter
Join Date: Jan 2010
Location: missouri
Posts: 76
Likes: 0
Received 0 Likes on 0 Posts
Shut Mouth P0089 Fuel Pressure Regulator Performance

I have had my truck less than a week and it throws a code to day P0089 Fuel Pressure Regulator Performance can any one tell me any thing about it ? i cleared it and 30 mi or so it threw it for a second time
 
  #2  
Old 08-31-2010, 11:32 PM
oglejust's Avatar
Diesel Wrench
Join Date: Oct 2008
Location: paris illinois
Posts: 556
Received 19 Likes on 19 Posts
Default

Circuit Description
The engine control module (ECM) uses commanded fuel pump flow to determine a desired fuel rail pressure (FRP). The actual fuel pressure is monitored using the FRP sensor. If the FRP sensor indicates a pressure more than 20 MPa greater than desired, DTC P0089 will set.

Conditions for Running the DTC
• DTCs P0192, P0193, or P0641 are not set.

• The ignition is ON.

Conditions for Setting the DTC
• The difference between actual and desired FRP is more than 20 MPa.

• Commanded fuel pump flow is 100 mm³/second or less.

basically u have 4 choices
1. wiring
2. ecm
3.fuel rail pressure sensor
4.fuel pressure regulator
 
  #3  
Old 09-01-2010, 08:57 AM
ironworker's Avatar
Diesel Fan
Thread Starter
Join Date: Jan 2010
Location: missouri
Posts: 76
Likes: 0
Received 0 Likes on 0 Posts
Default

I have been running Lucas Fuel treatment in it for the last couple tanks and i cleared the code after the first tank because the the motor surge that had started to show up when slowing down ,befor the fuel treatment, had went away. Knock on wood it has stayed off.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Dbleo351
Chevy/GMC 6.2L and 6.5L
19
11-20-2016 09:34 AM
ctjkelley
Chevy/GMC 6.2L and 6.5L
7
06-03-2015 06:01 AM
RatsMC
Chevy/GMC 6.2L and 6.5L
19
05-04-2015 05:25 PM
robbyS
5.9 Liter CR Dodge Cummins 03-07
3
04-16-2015 02:22 PM
moneypitk5
Chevy/GMC 6.2L and 6.5L
3
02-12-2015 11:01 AM



Quick Reply: P0089 Fuel Pressure Regulator Performance



All times are GMT -5. The time now is 02:15 AM.