Code help please!
Thread Starter
Pro
Joined: Sep 2007
Posts: 692
Likes: 1
From: Argyle Tx.
St. Jude Donor '08
Code help please!
Well I have the codes and know what they are, now how do I fix em?
1st code is P0171 Fuel Trim System Lean Bank 1 and the second is P0174 Fuel Trim System Lean Bank 2.This morning I was in traffic and was idling along. From time to time the cars RPM would drop to about 200, it felt like it was going to stall, then it picked up again. Also my MPG average is at a all time low. It goes from 16mpg to about 19mpg hwy, rarely going into 20. I believe these are caused by the crappy
BBK intake I have installed at the moment. I will be changing over to a LS6 intake next week, but id like to fix it for the mean time.
I also have these codes P0410 AIR System
and C1232 LF Wheel Speed Circuit Open or Shorted any help would be appreciated. Thanks
1st code is P0171 Fuel Trim System Lean Bank 1 and the second is P0174 Fuel Trim System Lean Bank 2.This morning I was in traffic and was idling along. From time to time the cars RPM would drop to about 200, it felt like it was going to stall, then it picked up again. Also my MPG average is at a all time low. It goes from 16mpg to about 19mpg hwy, rarely going into 20. I believe these are caused by the crappy
BBK intake I have installed at the moment. I will be changing over to a LS6 intake next week, but id like to fix it for the mean time. I also have these codes P0410 AIR System
and C1232 LF Wheel Speed Circuit Open or Shorted any help would be appreciated. Thanks
Race Director
Joined: May 2005
Posts: 15,960
Likes: 21
From: West Norriton PA
St. Jude Donor '08
Well I have the codes and know what they are, now how do I fix em?
1st code is P0171 Fuel Trim System Lean Bank 1 and the second is P0174 Fuel Trim System Lean Bank 2.This morning I was in traffic and was idling along. From time to time the cars RPM would drop to about 200, it felt like it was going to stall, then it picked up again. Also my MPG average is at a all time low. It goes from 16mpg to about 19mpg hwy, rarely going into 20. I believe these are caused by the crappy BBK intake I have installed at the moment. I will be changing over to a LS6 intake next week, but id like to fix it for the mean time.
I also have these codes P0410 AIR System
and C1232 LF Wheel Speed Circuit Open or Shorted any help would be appreciated. Thanks
1st code is P0171 Fuel Trim System Lean Bank 1 and the second is P0174 Fuel Trim System Lean Bank 2.This morning I was in traffic and was idling along. From time to time the cars RPM would drop to about 200, it felt like it was going to stall, then it picked up again. Also my MPG average is at a all time low. It goes from 16mpg to about 19mpg hwy, rarely going into 20. I believe these are caused by the crappy
BBK intake I have installed at the moment. I will be changing over to a LS6 intake next week, but id like to fix it for the mean time. I also have these codes P0410 AIR System
and C1232 LF Wheel Speed Circuit Open or Shorted any help would be appreciated. Thanks
Lean codes could be a bas O2 Sensor.
The air tube code could be a bad or dirty check valve
The wheel sensor could be a bad wire or sensor on that wheel. You could swap the left to right to figure out if it's the wire or the sensor.
Advanced
Joined: Sep 2007
Posts: 50
Likes: 0
From: lexington nc
With lean codes both banks its not likely to be an oxygen sensor, lean codes are caused by vacuum leaks(including the intake gaskets) low fuel pressure (pump or fuel filter) , confused Mass Air Flow, and sometimes updated calibrations for these codes as well, first I would repair the P0410 A.I.R code so thats not messing with the o2 sensors and check it over real well cold engine for vacuum leaks at the intake gaskets.
Thread Starter
Pro
Joined: Sep 2007
Posts: 692
Likes: 1
From: Argyle Tx.
St. Jude Donor '08
With lean codes both banks its not likely to be an oxygen sensor, lean codes are caused by vacuum leaks(including the intake gaskets) low fuel pressure (pump or fuel filter) , confused Mass Air Flow, and sometimes updated calibrations for these codes as well, first I would repair the P0410 A.I.R code so thats not messing with the o2 sensors and check it over real well cold engine for vacuum leaks at the intake gaskets.
I know. Anywho, how does one go about checking for vacum leaks? Thanks again.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Thread Starter
Pro
Joined: Sep 2007
Posts: 692
Likes: 1
From: Argyle Tx.
St. Jude Donor '08
Thank you, will do that ASAP. The engine will bog out if there is a leak right?
Race Director
Joined: May 2005
Posts: 15,960
Likes: 21
From: West Norriton PA
St. Jude Donor '08
http://forums.corvetteforum.com/show...t=check+valves
http://www.gearchatter.com/viewtopic10210.php
P0410 is a code for the secondary air injection system--The air pump that pumps air into the exhaust to clean emissions ...check the intake hose that is on the air cleaner to see if it is on proprerly--check for any exhaust leaks--check the check valves on boths sides--they do carbon up sometimes and won't shut---also check all the air line connections on the driver's side to see if any of the hose clamps broke or hoses are bad--otherwise it may be a random code---have it cleared with a scanner and try again--
Thread Starter
Pro
Joined: Sep 2007
Posts: 692
Likes: 1
From: Argyle Tx.
St. Jude Donor '08
http://forums.corvetteforum.com/show...t=check+valves
http://www.gearchatter.com/viewtopic10210.php
P0410 is a code for the secondary air injection system--The air pump that pumps air into the exhaust to clean emissions ...check the intake hose that is on the air cleaner to see if it is on proprerly--check for any exhaust leaks--check the check valves on boths sides--they do carbon up sometimes and won't shut---also check all the air line connections on the driver's side to see if any of the hose clamps broke or hoses are bad--otherwise it may be a random code---have it cleared with a scanner and try again--
http://www.gearchatter.com/viewtopic10210.php
P0410 is a code for the secondary air injection system--The air pump that pumps air into the exhaust to clean emissions ...check the intake hose that is on the air cleaner to see if it is on proprerly--check for any exhaust leaks--check the check valves on boths sides--they do carbon up sometimes and won't shut---also check all the air line connections on the driver's side to see if any of the hose clamps broke or hoses are bad--otherwise it may be a random code---have it cleared with a scanner and try again--
