Re: '87 4kq fuel system problems

[JShadzi@aol.com]

In a message dated 7/24/99 6:16:02 PM Eastern Daylight Time, 
Aaron@Peloquin.com writes:

<< Symptoms:  black smoke coming out of the tail pipe; excessive fuel
 consumption (below 10 mpg); running extremely rough because spark plugs
 caked with carbon desposits, in some cases clogging the gaps; very black
 oil.
 
 Took it to Bellevue Motorsports, they replaced the air hose that runs
 between the ISV and air intake plenum and the O2 sensor, and they reset the
 fuel-air mixture.  I replaced the plugs and the air filter.  The cap and
 rotor are new and the wires < 1 year old.
  >>

	In my experience, black smoke means a rich mixture, gray or whitish 
means oil consumption.  If it is truly black, you have a fuel system problem 
which seems youve already discovered.  I would check the fuel mixture again 
(10m.amps), and an air/fuel ratio gauge hooked up to your oxy sensor would 
also confirm the richness.
Javad Shadzi