STILL slow car-knock sensor?

[abatzis2@hotmail.com (Michael Abatzis)]

ok, still no joy after replacing the knock box, icu, and coil today. i 
replaced the fuel box also, but the car ran like shit, so i switched back 
(the spare had been sitting semi-exposed to the elements, so i figured that 
was the bad box...). also made an led light and checked for knock box 
faults, but found none. i'm not sure what that means though. i guess my 
knock sensor could still be "bad", as in triggering  excessively, and that 
wouldn't be picked up as a fault...i may replace that tomorrow.  still 
haven't measured injector output, may do that tomorrow also. checked the 
timing for the millionth time, hoping to find it off a tooth. but it's still 
dead on.  i can swap plug wires, but i think i'm really reaching here.  i'm 
thinking this is the same thing that was happening when i first got the 
car--real slow, but eventually fixed itself.  what the hell else could this 
be? what haven't i checked/replaced? for the record:

1. swapped transfer pump, checked main. w/i specs (way over spec, actually)
2. quick check injectors, look ok.
3. timing, mixture, air sensor plate adjust.
4. checked fuel ecu harness.
5. checked knock sensor memory, swapped box.
6. swapped icu
7. checked/replaced coolant temp sensor.
8. checked grounds.
9. 1 mo old plugs, fuel filter, k&n recharge.
10. swapped coil.
11.  checked timing advance. advances ~13' @ 2500, per specs.
12. o2 sensor volt fluctuating b/t .1-.9v (though it's open loop at full 
throttle anyway, right?)
13. checked throttle switches, dpr enrichment when full throttle switch 
activated.
14. compression check, all 4 @ ~210 (normal on my gauge)

stuff i could still do:
1. swap/retorque knock sensor.
2. check/swap thermo time switch
3. swap plug wires/dizzy/dizzy cap/rotor
4. check injector output scientific-like <--this would rule out dpr 
valve/fuel dizzy as the problem, right?
5. remove valve cover, check cam timing from inside (doubt it, but maybe cam 
sprocket slipped? but then cam/crank timing should have changed)
6. double check tdc with screwdriver in #1 hole (slipped crank sprocket 
again? but cam timing is dead on...)

are there ANY other possibilities here? i need some help here--can't figure 
out what i'm missing. that covers replacing/extensively testing pretty much 
my whole ignition/fuel system. could it be an internal problem with the 
normal compression?


-Michael Abatzis
Hotlanta! GA-->Soon to be New Orleans!
1988 Scirocco 2L 16v RIP-->parting, finally taking orders: 
www.learnlink.emory.edu/~mabatzi/mikes_page1.html
1987 Scirocco 2L 16v...






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