Code p0492

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Oct 13, 2009 | 07:48 PM

zackyam

Thread Starter

1st Gear

Joined: Oct 2009

Posts: 1

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From: DURANT OK

Code p0492

I am hoping for some help here. On my 2004 ZO6 the check engine light came on today. It showed a code P0492 Where should I look for this problem or can I get some information on this. It says Secondary air injection system insufficient flow bank 2. What should I do? Thanks

Oct 13, 2009 | 08:29 PM

padojada

Instructor

Joined: Aug 2009

Posts: 147

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From: Georgia

This helped me out alot. One of the member s on this site gave me this info. Hope it works out for you.

one of several sources on the interweb. welcome aboard.
http://www.c5forum.com/ayc/dtcdic.php

Aug 1, 2014 | 12:33 PM

Cjwisbroke

1st Gear

Joined: Jul 2014

Posts: 1

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C5 - Smog issues - P0492

Quote:

Originally Posted by zackyam

I have an 04 Commemorative Edition and fought that code as well. Someone on this site suggested to open the hose that feeds air to the check valves and put carb and choke cleaner in and force with compressed air, then do the same with WD-40 to clean up and free up the check valves. Passenger valve is a nightmare to change (no idea why GM decided to put it there) Started car and white smoke came out of all 4 tail pipes for a while. Took it for a nice high RPM cruise and then had it smogged a few days later. Passed with flying colors!

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