RE: [DML] Tuning Idle Speed Circuit. (was: Re: idle problem)

["K. Creason" <dmc4687@xxxx>]

Look into the air valve in the intake hose. It adjusts the mixture or hot
and cold air; it may be starving the engine for cold air until it heats up.
I (and many others) removed mine totally so that it only breathes fresh air
from the fender.

-----Original Message-----
From: Rustproof [mailto:Rustproof@xxxx]
Sent: Saturday, September 06, 2003 11:35 AM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: Re: [DML] Tuning Idle Speed Circuit. (was: Re: idle problem)


I would like to thank everyone again for all their help. Here's what
happened...I re-adjusted the CO to 14.5:1. Cleaned the entire throttle
assembly. Rechecked for vacuum leaks. Replaced all the injector seals.
Checked the lambda system and idle system for proper operation and both are
working within specification. Timing is perfect. Replaced O2 sensor just for
fun. After all this, the idle is very stable once the car warms up.
Performance has greatly improved. (once warmed to operating temperature
everything runs like a new car) But...when she's cold she sputters, idles
poorly near 600 rpms rumbling like a Harley and shaking like my grandmother.
She stalls if you attempt to depress the accelerator. After about 5 minutes
of warm-up, you would think it was a different vehicle. Smooth a silk. Could
this be related to the warm-up regulator? Cold start valve? She does start
just by simply turning the key. No need to give it 1/4 pedal. She always
starts warm or cold. I't just a little annoying having to sit there for 5
minutes before you can move. Any suggestions?
Rustproof
vin#1559
----- Original Message -----
From: "David Teitelbaum" <jtrealty@xxxx>
To: <dmcnews@xxxxxxxxxxxxxxx>
Sent: Thursday, August 28, 2003 6:37 PM
Subject: [DML] Tuning Idle Speed Circuit. (was: Re: idle problem)


> It sounds to me like your Lambda system just died. Troubleshoot to
> find the reason (very common for the relay to die). Since the Lambda
> wasn't adding fuel you compensated by going overly rich with the
> mixture screw. You should hear the frequency valve buzz whenever the
> engine is running. You are almost there, get the Lambda running again
> and it sounds to me like you have it just about right! (Of course
> readjust the mixture screw with the Lambda running).
> David Teitelbaum
> vin 10757
>
>
> --- In dmcnews@xxxxxxxxxxxxxxx, "Rustproof" <Rustproof@xxxx> wrote:
> > Having taken all the advice I could get from the list and the
> archives, I
> > have attempted to set up both the CO mixture as well as the CIS
> idle. This
> > was fiddled with by the previous owner and never properly reset. I
>
>
>
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