 
[DMCForum] Re: Yet more ignition analysis:
    
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[DMCForum] Re: Yet more ignition analysis:
- From: "cruznmd" <racuti1@xxxxxxxxxxxx>
- Date: Fri, 06 Aug 2004 14:49:52 -0000
I forgot to mention:
Ed Garbade sent me a whamo-dyne email detailing a similar problem. He 
installed DMCH's ingition kit and still had issues. Apparently even a 
tiny amount of water in a plug well may cause this and the boot keeps 
it trapped. You guys have all suggested this before and I gaffed you 
off. I (unfortunately) store my car outside, it has been raining off 
and on. I will use paper towels and my air compressor to triple-check 
all wells clean and dry.
--- In DMCForum@xxxxxxxxxxxxxxx, "cruznmd" <racuti1@xxxx> wrote:
> For all my testing, I haven't figure out much...I can only say what 
I 
> think the problem -isn't-. It is NOT:
> 
> 1. coil
> 2. dist cap
> 3. rotor
> 4. ballast resistor
> 5. ignition ECU
> 6. pulse coil (90% sure)
> 
> What I do know is that if you press the pedal past a certain point, 
> the acceleration curve "snaps" flat, and the engine makes a bogging 
> sound. If you let up on the pedal, the sound "snaps" off and you 
have 
> smooth, if somewhat shallow acceleration.
> 
> I am now not ruling out the spark plug wires even though they are 
> mostly new. I have not ohm'd them out to see what resistance they 
> offer, so they are suspect.
> 
> So let's discuss: What happens when you depress the accelerator 
pedal 
> 1/2-2/3 of it's total travel?
> 
> 1. Timing advances a certain number of degrees (or should).
> 2. When cold, the CPR delievers a fuel spike.
> 3. The metering plunger in the fuel dist. delivers more fuel.
> 4. The pulse coil is spinning faster, delievering faster, more 
> powerful pulses to the ignition ECU.
> 5. The ECU is converting these pulses to coil control signals.
> 6. The coil is outputting pulses to the distributor.
> 7. Pulses travel to individual plugs via the rotor.
> 8. Voltage is being fed to the coil primary windings.
> 9. More air is being drawn into the engine. (I have a clean, K&N 
> filter installed)
> 
> What else happens? Inputs welcome.
> 
> Rich A.
> #5335
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