Code help please!
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Pro
Joined: Sep 2007
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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
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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.
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Joined: Sep 2007
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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
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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.
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Thread Starter
Pro
Joined: Sep 2007
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From: Argyle Tx.
St. Jude Donor '08
Thank you, will do that ASAP. The engine will bog out if there is a leak right?
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Joined: May 2005
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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--
