I pulled this code off my 02 last night; according to the manual this is a problem with the air system bank 2. I checked all of the connections including the fitting on my QTP headers. Everything looks good by visual inspection however I can’t see behind the intake manifold. Reading the troubleshooting for this code in the manual I was thinking the problem might be the check valve.

Anyone have experience or recommendations to correct this

 

Sorry, this should be in the C5 Section

 

Do you have a after market intake system on car sounds like you are getting to much air.

 

IS THIS THE CHART YOU WERE FOLLOWING?
1
Did you perform the Diagnostic System Check-Engine Controls?
--
Go to Step 2
Go to Diagnostic System Check - Engine Controls

2
Install a scan tool.
Idle the engine in Closed Loop.
Turn OFF all the accessories.
Monitor the HO2S voltage display for the applicable bank on the Engine 1 Data List using a scan tool.
Command the AIR system ON with a scan tool.
Observe and record the HO2S voltage as the AIR system is enabled.
Does the HO2S voltage drop below the specified value?
222 mV
Go to Diagnostic Aids
Go to Step 3

3
Inspect all hoses and pipes for:

Proper connections
Secure clamps are on the pipes and the hoses
No kinks, holes, or pinched hoses/pipes
Components with evidence of heat damage
Did all the above verify to be OK?
--
Go to Step 4
Go to Step 6

4
Disconnect the hose from the applicable check valve.
Command the AIR system ON with a scan tool.
Is air present at the hose outlet?
--
Go to Step 7
Go to Step 5

5
Repair the restriction or the blockage in the applicable bank AIR hoses/pipes between the exhaust manifold and the point where the system branches to both sides of the engine.

Did you complete the repair?
--
Go to Step 8
--

6
Repair the condition found.

Did you complete the repair?
--
Go to Step 8
--

7
Replace the applicable check valve. Refer to Secondary Air Injection (AIR) Check Valve/Pipe Replacement - Bank 1 or Secondary Air Injection (AIR) Check Valve/Pipe Replacement - Bank 2 .

Did you complete the replacement?
--
Go to Step 8
--

8
Use a scan tool in order to clear the DTCs.
Turn OFF the ignition for 30 seconds.
Start the engine.
Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC run and pass?
--
Go to Step 9
Go to Step 2

9
With a scan tool, observe the stored information, Capture info.

Does the scan tool display any DTCs that you have not diagnosed?
--
Go to Diagnostic Trouble Code (DTC) List
System OK



IF THIS DOSENT HELP TRY UN SCREWING THE CHECK VALVES AND TRY TO SUCK/BLOW THROUGH..
YOU SHOULD ONLY BEABLE TO DO IT ONE WAY..
THEY GO BAD NORMALY AROUND 30-40K MILES..
CHECK HOSES.....
THE ONE TO THE AIR FILTER HOUSING IS VERY IMPORTANT..

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Document ID# 792399
2002 Chevrolet Corvette

 

Yes, I was reading that chart out of the service manual. At this point I am not sure that the check valve is the problem. The car is modified and tuned, I am thinking its running too rich at start up and the air introduced is not enough to offset the rich mixture.