CHECK ENGINE will not go away!
Thread Starter
Burning Brakes
Joined: Apr 2012
Posts: 1,233
Likes: 3
From: Mukilteo Washington
CHECK ENGINE will not go away!
"Air injection" problem. I JUST bought this 01' Z06. Its beautiful. I love it. BUT I already changed an old vaccuum hose and two pcv valves and the light wont go away. The air pump runs but its not blowing air all the time when I take the hose apart by the driver side wheel. Whats telling the pump to turn on? Could that be bad?
Thanks playaz, I know emissions isnt a big deal but I HATE that light
Peace
Thanks playaz, I know emissions isnt a big deal but I HATE that light
Peace
Safety Car
Joined: Jan 2001
Posts: 4,387
Likes: 691
From: Boise ID
Melting Slicks
Joined: Aug 2006
Posts: 3,270
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From: Chilliwack B.C.
Thread Starter
Burning Brakes
Joined: Apr 2012
Posts: 1,233
Likes: 3
From: Mukilteo Washington
I just replaced both the check air valves along with the vacuum hose. The reader I used just said "air injection." The pump is makin noise like its workin but its like its not blowing air all the time. That's why I wonder if there's a short somewhere that has it only workin part time or somethin.
Tech Contributor
Joined: Jan 2007
Posts: 19,470
Likes: 1,170
From: Dyer, IN
I just replaced both the check air valves along with the vacuum hose. The reader I used just said "air injection." The pump is makin noise like its workin but its like its not blowing air all the time. That's why I wonder if there's a short somewhere that has it only workin part time or somethin.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
The pump only runs for a couple of minutes at cold start and when the PCM tells it to during the AIR Test.
The pump has a vacuum controlled OUTPUT valve. Check that valve and make sure that it has a vacuum signal when the pump is running. If it does and you still dont have pump air flow, the valve is bad.
PUMP & OUTLET VALVE:
BC
The pump has a vacuum controlled OUTPUT valve. Check that valve and make sure that it has a vacuum signal when the pump is running. If it does and you still dont have pump air flow, the valve is bad.
PUMP & OUTLET VALVE:
BC
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Pro
Joined: Aug 2010
Posts: 593
Likes: 9
From: San Antonio Texas
In my very humble opinion and because of my actual experience I would not spend another penny or ounce of effort trying to troubleshoot this useless piece of hardware. I replaced my AIR pump twice, replaced both valves, and still had the issue. For $100 I had a great tuner modify the parameters in the 'puter and have not seen a CEL since. Performance is no issue, neither is motor vehicle inspection. Good Luck.
Thread Starter
Burning Brakes
Joined: Apr 2012
Posts: 1,233
Likes: 3
From: Mukilteo Washington
Man, thanks for all your guys' help, dang, pictures too! This website is a dream come true! Yeah, i have spent too much already on this dumb system. I really appreciate the help guys.
Tech Contributor
Joined: Jan 2007
Posts: 19,470
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From: Dyer, IN
Safety Car
Joined: Jan 2001
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From: Boise ID
Tech Contributor
Joined: Aug 2008
Posts: 2,902
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From: Oak Hill Virginia
Found this a while ago: http://www.youtube.com/watch?v=vhcVCICGE3U
Use the 3 and 4 buttons to scroll through the modules
Use the 1 and 2 buttons to scroll through the codes within a module
Nobody can help you until you post your codes...
Use the 3 and 4 buttons to scroll through the modules
Use the 1 and 2 buttons to scroll through the codes within a module
Nobody can help you until you post your codes...