Re: [DML] delayed acceleration problem

[jtrealty@xxxx]

Look at the control pressure regulater as it is critical to idle 
quality during warm-up. Check the wiring connections and the vent hose 
is not blocked or kinked. Some people have posted that it can be 
disasssembled and cleaned and that helped.
David Teitelbaum
vin 10757


--- In dmcnews@xxxx, "Walter" <Whalt@xxxx> wrote:
> An update on my acceleration problem:
> I found corroded electrical connections at the frequency valve and 
control
> pressure regulator. The frequency valve was still buzzing, but not 
as loud
> as it otherwise could. I used steel wool and a small knife to 
scrape the
> contacts clean and then blew it out with shop air. I also had to 
cut off &
> replace the ends of the wiring loom.
> 
> This has cured the worst of the problem, but I am still getting (get 
this)
> an occasional cold acceleration problem. Sometimes I start the car 
from
> cold and I have to run it without the a/c until it warms up for a 
minute.
> But most of the time it starts & runs fine cold. I suppose this is 
most
> likely a bad electrical connection somewhere concerning the Lambda 
ECU. I
> cleaned up the ground near the frequency valve. From the looks of 
it, the
> designers were asking for trouble there. Are there other places I 
should
> start looking? You guys can be so helpful. I don't think I ever 
would have
> found that ground by the FV without taking the car apart.
> 
> Anyone have any other suggestions on what else to look for?
> 
> I packed the electrical connections with dielectric grease. This 
stuff is
> NAPA Echlin part # ML3 silicone compound (contains 
Dimethylpolysiloxane).
> Around $13 for a 1 oz tube. It is specified for 'secondary 
ignition' wires.
> I suppose that means spark plug wires? It insulates at high 
voltages &
> temperatures, is very thick and doesn't seem to seep or run. Is 
this the
> right thing to use? It makes a lot more sense than using that gray
> anti-corrosive paste meant for aluminum wiring or just regular 
grease or
> WD40. Comments anyone? Those Bosch connectors need something to 
keep the
> weather out of them. The rubber gaskets alone are not enough.
> 
> Walt Tampa, FL
> ----- Original Message -----
> <snip>
> > I'm having a weird acceleration problem that I need some help 
diagnosing.
> > When I accelerate, the engine hesitates for 2 or 3 seconds before 
it
> really
> > starts to develop horsepower.
> <snip>