code PO410 HC please help
Thread Starter
5th Gear
Joined: Jul 2009
Posts: 5
Likes: 0
code PO410 HC please help
I cleared my codes without getting them recorded, my bad. I failed the inspection with cat, O2 evap. It took about 3 days for it show a new code PO410HC Any ideas on which O2 sensors or what I nned to fix to get this code fixed? I would appreciate any help.
Race Director
Joined: May 2005
Posts: 15,960
Likes: 21
From: West Norriton PA
St. Jude Donor '08
A little more info on year of car, miles and model would be helpful
Thread Starter
5th Gear
Joined: Jul 2009
Posts: 5
Likes: 0
More info on PO 410 HC please help
My vette is a 2003 with about 78,000 miles. The check engine light has been coming on now and then for a long time. On more than off. It seemed at times the light would go off after putting in Shell gas. But lately the light has stayed on.
Racer
Joined: Aug 2006
Posts: 280
Likes: 1
From: NEW WINDSOR NY
My 98 kept throwing this code when I ran 87 octane.As soon as I upgraded to a minimum of 89 light went out and code went to the h or history.C at the end is current.The root of the problem is usually the air check valves behind the intake.Good luck.
Race Director
Joined: May 2005
Posts: 15,960
Likes: 21
From: West Norriton PA
St. Jude Donor '08
You should also be using premium gas.
Intermediate
Joined: Mar 2005
Posts: 27
Likes: 0
From: arlington wa
I had the same code keep poping up -- Replaced the downline 02 sensor on the left side -- ($166.00) from Fred Bean -- Also replaced the relay for the air injection pump -- Problem fixed -- Code was comming up every time I started the car -- After it warmed up & I cleared it, it would stay off untill the next warmup
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