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Old 05-09-2010   #1
A1990
 
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Default Intermittent Code 63 Ideas

Hammer is traveling from the west on his trek to BG. This morning he is experiencing an intermittent code 63 on his 91.

Any ideas for him?
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Old 05-09-2010   #2
Bill
 
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Default Re: Intermittent Code 63 Ideas

Code 63 is "Right oxygen sensor not varying" . Since it is intermittent I would be looking for a loose connection/broken wire.
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Old 05-09-2010   #3
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Default Re: Intermittent Code 63 Ideas

Dennis,

O2 sensor could be grounding also. Has he done any work in that area recently? Any chance he's coming thru Chicagoland?

Last edited by XfireZ51; 05-09-2010 at 12:47 PM.
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Old 05-09-2010   #4
todesengel
 
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Default Re: Intermittent Code 63 Ideas

It could also mean that the it's effective measuring range has ben reduced, a.k.a., on it's way out. I do not know a lot about the specifics on these cars, but if they are like a typical 4 wire I am used to then it coul be aything from the heater not working, or the volatge signal has become erratic. There is also the possibility, as already mentoned, that the connecton could be loose.
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Old 05-09-2010   #5
A1990
 
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Default Re: Intermittent Code 63 Ideas

Thanks guys! He should be at my place in a couple hours. We will inspect and probably just replace.
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Old 05-09-2010   #6
HAWAIIZR-1
 
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Default Re: Intermittent Code 63 Ideas

Dennis,

Tell John I said Hello too and I can wait to meet you and that awesome Atomic Z of yours..........one of my all time favorites along with Jerry's.

Craig
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Old 05-09-2010   #7
GrayZ
 
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Default Re: Intermittent Code 63 Ideas

Quote:
Originally Posted by HAWAIIZR-1 View Post
Dennis,

Tell John I said Hello too and I can wait to meet you and that awesome Atomic Z of yours..........one of my all time favorites along with Jerry's.

Craig
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Old 05-09-2010   #8
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Default Re: Intermittent Code 63 Ideas

Quote:
Originally Posted by A1990 View Post
Thanks guys! He should be at my place in a couple hours. We will inspect and probably just replace.
Dennis,
Just for grins, check to see if there is any moisture in the wire connector. I had one get water in the connector...... bad miss problems on that bank until into open loop. Drove it 100 miles home in 4th @ 3200+rpm. if no miss, not the problem. The short is far worse than the open.

C ya in BG
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Old 05-09-2010   #9
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Default Re: Intermittent Code 63 Ideas

We will check connections first. He has reported that he hasn't had the code for a while now.
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Old 05-10-2010   #10
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Default Re: Intermittent Code 63 Ideas

So what was it? Educate us please.
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