C3 Vette Registry - The Best Resource on the Net for C3 Vettes! C3 Vette
Forums -> C3 Fuel, Emission Control, and Exhaust Systems
Not Logged In! Login or Register!  Users Online: 14 / Help 
Features  Find C3 Parts on ebay in only 2 or 3 clicks!  | Add YOUR C3 to the Registry

Supporting Vendors
Mid America Motorworks
CorvetteClothing.com
Bair's Corvettes
VetteBookStore.com
Volunteer Vette Products

C3 of the Month
None Current
Enter Yours Today!
Online C3 Show
13
C3s are Registered

Vanity Plates
1FAST80
vetteonr
Featured Links

Buy Now
Corvette 50th Anniversary
Corvette 50th Anniversary


The Corvette Factories: Building America's Sports Car (Hardcover)
The Corvette Factories: Building America's Sports Car (Hardcover)


Corvette by the Numbers
Corvette by the Numbers


Chevrolet Corvette Restoration Guide
Chevrolet Corvette Restoration Guide



| Hide Signatures and Profile Pics

 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page [1]  
7/25/14 11:05am - Original Message: 'code 13 o2 sensor'
chronos51
Former Member
- Send Private Message


Phoenix, AZ - USA

Vette(s):
1982 corvette crossfire production numer C5101985. Color is silver and claret. All original numbers match. slight mods to crossfire for better efficiancy and power balanced and added fuel pressure assembly between throttle bodies,

Joined: 6/12/2011
Posts: 139
ok so while driving from Twin Falls to Phoenix (800 miles) my check engine light came on a few times.
I pulled over and pulled the codes- computer reads code 12 and 13, i know code 12 is just the diagnostic code and means that the computer is registering that it is in diagnostic mode- or something like that.
in my chiltons Code 13 refers to the o2 sensor. 
The sensor will trip the check engine light only at specific speeds- with the cruise control on and above 72 mph. if the cruise is set below 72 the o2 sensor does not trip the check engine light and the car runs smoothly with no issues- 
when the check engine light came on I slowed down to pull over and the check engine light shuts off at 35 mph and stays off. unless i set the cruise above 72.

the book also referred to the throttle position sensor- I will check the volts to see if it has moved and isnt set to the correct voltage. if it is i am planning on replacing the o2 sensor as well as checking the wires and connections.

anyone else have an o2 sensor trip the check engine light at above certain speeds and no other time?

Marcus


____________________________________




 Reply Reply  Quote Reply w/Quote
 
Support C3VR!
Suport our advertisers
7/25/14 12:00pm - Reply: 'Re: code 13 o2 sensor'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19454
My '85 does that, too, and sets an 02 code, then it goes away.
On the '81, I don't have the info that specifically says what sets that code....is it running rich, lean, or is it not getting a signal at all? Don't know. I do have the Service manual at home, tho, so I can check into it later, unless someone else can first. I do know it will only set while driving at hiway speeds for at least 5 minutes...
Could be an 02 sensor that is lazy(not responding quick enough), might have some carbon build up on it, but could also be a wiring problem right at the sensor. Chances are a new sensor will correct the problem, as long as the fuel mixture while cruizing is within limits. The problems you've had with your fuel pressure situation is prolly also causing this code to set.....Ouch


____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page [1]  
 Forums -> C3 Fuel, Emission Control, and Exhaust Systems
(Moderator: Adam Wartell, Norsky, Adams' Apple, kstyer)
 

 
Official C3 Vette Registry Community:
Home | Forums | Email | Who's Online | Clubs | Events | Member Stats

Other Official C3 Vette Registry Areas:
Members | Research | Shop | My Account | About C3VR
 

Corvette is a registered trademark of the General Motors Corporation(GM) & Chevrolet Motor Division. Vette Registries, LLC is responsible for all site content (except for member submitted content or where otherwise noted) and does not claim or imply that Chevrolet or GM is responsible for Official C3 Vette Registry content. Vette Registries, LLC is independent from GM and is not affiliated with, sponsored or supported by GM.  Copyright/trademark/sales mark infringements are not intended, or implied and are in fact used to support GM, Chevrolet and Corvette

Official C3 Vette Registry content is Copyright 2001-2017, Vette Registries, LLC. Content may not be reused without written consent. All Rights Reserved. NS

Corvette (Vette) Model Years on this site: 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 30