[DML] Re: Can someone explain this? (distributor positioning)

["stainlessilusion" <5n-@xxxxxxx>]

Thank you all for your help and advice! Trouble? Yes, my car is very
reliable for throwing me another problem or quirk now and then. But
nah, it's still a great car; and I figure with all the parts I have
replaced with new ones my car's gotta be done soon right?-It's almost
brand new now! I removed the plate with the bulkhead connections
again. The splice is a 1.0uf capacitor running from green wire of the
larger white connector [#45 on David Delman's bulkhead  connection
diagram] to black wire in blue connector [#23]. #23 says it's a ground
for the diagnostic plug, but I don't have the ground hooked up so 23
might not have any current at all unless it runs to a ground inside
the car somehwere. Remove this capacitor? I have yet to look for more
cut wires and do the voltage testing etc. My only problem is I don't
have a diagnostic plug on my engine.....guess I should start looking
for it. -----Dani B. #5003


--- In dmcnews@xxxxxxxxxxxxxxx, "David Teitelbaum" <jtrealty@xxxx> wrote:
> You certainly have a lot of trouble with this car! I remember when you
> first started posting, all the problems you had with the fuel system.
> Anyway, if you get out your Workshop Manual you will find in the
> Lambda section under the specs different things to do with the O2
> sensor wire (appling a voltage, grounding it, and leaving it loose),
> and closing the WOT switch. You read the output with a dwell meter at
> the diagnostic plug and you should get readings close to what is in
> the manual. Keep in mind that you are reading an output directly from
> the ECU, not what is going to the FV. You might have to check the
> wiring from the ECU to the FV. A bad connection can cause the FV to
> not function. The ECU also has 2 ground connections that run through
> the bulkhead connectors by the ignition coil. You MUST have BOTH
> grounds at the ECU plug for the ECU to function. One of these grounds
> is the return path for the O2 sensor. If the ECU isn't properly
> grounded it cannot read the O2 sensor with only 1 wire! It is not
> normal for wires to be chopped up in there. This could be part of a
> missing ground circuit which would make the ECU look bad. I would open
> the plug up at the ECU and check out each wire all the way. In any
> case you have to troubleshoot EVERYTHING before you condemn the ECU
> unless you have a known good one to substitute. The Lambda ECU is not
> a high failure item. I would suspect a wiring problem or a dead O2
> sensor first. Chances are that if the ECU can work by holding the WOT
> switch the ECU is OK (the WOT switch and wiring too!).
> David Teitelbaum
> vin 10757
> 
> 
> --- In dmcnews@xxxxxxxxxxxxxxx, "stainlessilusion" <5n-@xxxx> wrote:
> > I just got my current ECU from DMCH just a few months ago, I'm 
> > pretty sure it isn't defective?is there any way to test the 
> > frequency valve part of it? How do I test the O2 sensor? When I 
> > changed the plate that mounts all the connections and coil on the 
> > engine bay bulkhead, I noticed wires cut and spliced into different 
> > wires [behind the plate inside the pontoon]; I noticed in particular 
> > one of the wires had a capacitor spliced in, was this a recall or 
> >






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