Please decipher code....thanks!
Thread Starter
Racer
Joined: May 2002
Posts: 332
Likes: 3
From: Little Rock AR
Re: Please decipher code....thanks! (dsk888)
P1415 - Air Pump Circuit Malfunction/ (AIR) System Bank 1
From the Service Manual ...
An AIR pump is used to lower tail pipe emissions on start-up. The PCM supplies a ground to the AIR pump relay, which energizes the AIR pump. The PCM monitors the HO2S (Heated Oxygen) sensor voltages in order to diagnose the AIR system.
...
If the PCM determines that the HO2S voltages for both banks did not respond as expected during the test, P0410 is set. If only 1 sensor responded, the PCM sets either a P1415 or a P1416 in order to indicate which bank the AIR system is inoperative.
... Hope that helps some ... maybe one of the resident experts will chime in and do a better job ...
From the Service Manual ...
An AIR pump is used to lower tail pipe emissions on start-up. The PCM supplies a ground to the AIR pump relay, which energizes the AIR pump. The PCM monitors the HO2S (Heated Oxygen) sensor voltages in order to diagnose the AIR system.
...
If the PCM determines that the HO2S voltages for both banks did not respond as expected during the test, P0410 is set. If only 1 sensor responded, the PCM sets either a P1415 or a P1416 in order to indicate which bank the AIR system is inoperative.
... Hope that helps some ... maybe one of the resident experts will chime in and do a better job ...
Drifting
Joined: May 2002
Posts: 1,607
Likes: 1
From: San Francisco CA
Re: Please decipher code....thanks! (dsk888)
P1415 refers to the AIR plumbing on the left bank. You should be able to fix this yourself, as it does not require any special tools.
Carbon build up in the exhaust manifold may restrict the airflow. If you suspect this, remove the air pipe from the manifold and inspect the passage.
Inspect all the hoses and pipes and make sure they are connected and the clamps are secure. Make sure there are no kinks, holes, heat damage or pinched hoses/pipes.
Disconnect the hose from the check valve on the left bank. With the engine cold, start the engine and check for air coming from the hose. If air is present at the hose then replace the check valve. If no air is present then there is a restriction or blockage between the left exhaust manifold and where the system divides to both sides of the engine.
Carbon build up in the exhaust manifold may restrict the airflow. If you suspect this, remove the air pipe from the manifold and inspect the passage.
Inspect all the hoses and pipes and make sure they are connected and the clamps are secure. Make sure there are no kinks, holes, heat damage or pinched hoses/pipes.
Disconnect the hose from the check valve on the left bank. With the engine cold, start the engine and check for air coming from the hose. If air is present at the hose then replace the check valve. If no air is present then there is a restriction or blockage between the left exhaust manifold and where the system divides to both sides of the engine.
Burning Brakes
Joined: Jan 2001
Posts: 985
Likes: 0
From: Palm Desert, CA , USA
Re: Please decipher code....thanks! (dsk888)
Did you recently install your headers? I had this and other codes thrown for a while after I installed mine. It could very well be a rusted check valve on the drivers side. It is easy to access and the part isn't expensive, about a 20 min. fix. :)
