[V8] power drop outs

[Ingo Rautenberg]

Mike,

Did you disconnect and test to see if the situation changes.  The  
reason I say is because (and I hope it's NOT the case), if you're  
flooding the exhaust with unburnt fuel, the cats can overheat and  
melt and clog the exhaust -- but Iu think you should be OK, since  
your cat overheat light doesn't/didn't come on...

I must say that even with a bad osx, the running condition (aside  
from fuel consumption) shouldn't be as you have described. Have you  
changed the engine speed sensors?

Ingo

On Apr 6, 2007, at 12:38 PM, Michele_Deltergo at KeyBank.com wrote:

>
>
> The first suspect appears to be the 02 sensor.  Just checked it is  
> getting
> power fine, problem is that it is passing almost all of it  
> through!  At
> start almost 3 volts going to 10 on warm up.  Seems to fit the  
> symptoms of
> OK running when cold (I think the ECU ignores 02 for a time) then  
> crappy
> when warm.   I thought most failed at no signal vs 100% signal,  
> must be
> shorted quite well.   Disappointing as 02 is only 7,000 miles old,  
> but good
> it that is the fix.  Unfortunately 02 is in like the original and  
> getting
> it out will be fun.
> Mike
>
>
>
>
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