Low end hesitation

["Jim Reeve" <ultra@xxxx>]

Since last fall, my car has been having some low-end hesitation 
issues. Those continued into this year, and resulted in mid-driving 
misses that convinced me I could not make it back to MN from Chicago 
4 weeks ago (but I did).

I figured the reason was a worn out ignition system, as the car has 
gone over 35,000 since the tuneup I gave it in spring of 2001. This 
past weekend, I gave the car its wanted tuneup. I replaced the fuel 
filter, Oxygen sensor, distributor cap/rotor, wires, plugs, and coil.

The car seemed to be running just fine this weekend when I was 
driving it around. But last night it felt as if the low end 
hesitations were continuing. Its most noticeable when I let the 
clutch out at low RPMs (approx idle). It seems like it will be a 
smooth start, but twords the end of the clutch pedal travel, the car 
lurches, and misses severely. It normally doesn't stall, but at WOT 
the engine will stay at about idle speed with no sign that it wants 
to speed up. I need to disengage the clutch again to get the engine 
revving once again before I can get going.

Another problem I noted yesterday, is that upon rapid deceleration, 
in gear, with a closed throttle, if I disengage the clutch at low 
RPMs, the engine almost stalls, and if I disengage it around 1000 RPM 
or so the engine will stall.


A few other things to note about my car...

Valves were adjusted in September 2002.

There has been a fluxuating idle issue since fall 2001 that I've 
never been able to pinpoint. (doesn't do it all the time, but is 
more of a fluxuation than the LAMBDA system should allow, A/C always 
smoothes it out, and never did it while cold)

There are ABSOLUTELY no vacumme leaks that I have been able to 
identify. (I've gone up and down every point of the engine more times 
than I can count)

Solenoid Valve is working as it should.

So with that said, suggestions?

Jim Reeve
MNDMC - Minnesota DeLorean Club
DMC-6960