[V8] No Officer, I don't want to race

[Michael Larosa Jr]

Andy Schor wrote:
> I have been having some intermittent idle issues with the V8, where it 
> will rev from ~400-800 rpm in neutral (like at a stop light).  The ISV, 
> O2 and knock sensors have been replaced.  This doesn't seem to affect 
> drivability or gas mileage, but this morning I was sitting next to a 
> police car at a light and the revving started up again (I have a Stebro 
> so it is even more noticeable).  I don't think it is related to the 
> following, but mentioned it just in case.  Sometimes it idles just fine.
> 
> Yesterday I drove it early in the day and it was fine.  A few hours 
> later I started it, the check engine light came on and it seemed to be 
> in a 'limp home mode'.  I turned it off and back on and the condition 
> didn't change.  I got to the destination, parked for a few hours, turned 
> the key and it was fine.  No CEL, no rough running, no limp home mode.  
> This morning it was fine (other than the revving thing which comes and 
> goes).
> 
> Any thoughts?
> 
> Andy Schor
> '91 V8QM
> '91 Avant
> 
> 


vacuum ?  possible the 3 breather hoses ?  oil dipstick nice and tight ?

v8's are sensitive to un metered air...

Mike,

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