Re: Emissions Question

[Kevin Baluha <baluha@tpa.cst.titan.com>]

> > What would cause my 87 Audi Q5000S to have double the hydrocarbons (440ppm)
> > and unbelievale CO?
> Jeez, that's a vague question.  Well, probably to start off with, what do 
> you know is good on the engine, and what aren't you sure about?  To list 
> a few things that it might be, here they are:
> Oxygen sensor
probably needs replacing
> Fuel injection computer
seems good.
> Catalyst
seems good.
> spark plugs/plug wires/ignition control/dist
probably needs replacing.
> vacuum leaks
is the - ac control system connected to the vacuum system. sometimes it 
misbehaves.
> ETC.
I have strange 'bands of power' ie under hard accel you can feel the 
tourqe vary as the tach climbs. Sometimes the power seems right sometimes
its a bit sluggish. According to the emmissions report (FL) my idle HCL/CO
level is the problem. At high rpms its ok.
> Let me know....
> -Rick
>  
> 


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