Chevrolet Forum - Chevy Enthusiasts Forums

Silverado, Sierra & Fullsize Pick-ups The Silverado & Sierra have been two of the best selling trucks in the US for decades, and is truly proven to be "like a rock".

2014 Chevy Silverado
Platform: Truck, GMT 400, 800, & 900

99 chevy 1500 z71 ext cab, OBD2 codes.

Thread Tools
 
Search this Thread
 
Old Jan 15, 2013 | 4:44 PM
Share
  #1  
Muskovin's Avatar
Muskovin
Thread Starter
CF Beginner
 
Joined: Feb 2012
Posts: 19
Likes: 0
Default 99 chevy 1500 z71 ext cab, OBD2 codes.
Hey guyes my truck has 3 codes spitting out and it idles really rough when cold! So i need to know the fixes to them so i can have a happy engine. I have put new fuel filter in her and ran injection cleaner through it.

1, Po171- Fuel system too lean bank 1
2, P0174- Fuel system too lean bank 2
3, p0449 Evap system vent control circuit low


What are my fixes?
Reply
0
Old Jan 15, 2013 | 5:29 PM
Share
  #2  
Allan In NE's Avatar
Allan In NE
CF Pro Member
 
Joined: Dec 2011
Posts: 674
Likes: 3
Default
Have you replaced the fuel filter yet?

Allan
Reply
0
Old Jan 15, 2013 | 5:42 PM
Share
  #3  
Muskovin's Avatar
Muskovin
Thread Starter
CF Beginner
 
Joined: Feb 2012
Posts: 19
Likes: 0
Default
yes i have.
Reply
0
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
95 cavalier obd2 port obd1 ecm to 96/7 obd2 ecm
87camaro
Cavalier
3
Apr 16, 2020 1:55 AM
06 Chevy Silverado 1500 z71 Ext. Cab.
Nelly_Girl
Show Off Central
5
Nov 28, 2013 10:06 PM
99 chevy 1500 z71 ext cab, oil leak
Muskovin
Silverado, Sierra & Fullsize Pick-ups
3
Jul 25, 2013 11:25 AM
WTB: 1996-1998 Chevy 1500 (Ext. Cab, Z71)
Guitar
OLD - Private 'Wanted' Classifieds
0
Mar 24, 2011 5:39 PM
Tags
Back to Subforum
Silverado, Sierra & Fullsize Pick-ups
View Next Unread
plasti dipped rocker panels on silverado




Advanced Search

All times are GMT -5. The time now is 2:07 AM.