[DML] Re: High Idle

["content22207" <brobertson@xxxxxxxxxxxx>]

Could be as simple as the throttle cable sheath slipping out of the
adjusting screw (engine end), in effect shortening the cable a good
1/4" or so. Ensure your throttle plates are indeed fully closed by
popping off the throttle spool connecting rod. Position shouldn't change.

My cable sheath slipped out once when I was still K Jetronic with
exactly your symptoms. 

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, Woody <BePositive2000@xxxx> wrote:
> 
> I'm stumped. Car insists on running at 2400-2600 rpm. 
> 
> I've diagnosed the idle circuit by removing the ECU plugs and doing all
> the tests. I did not have the temp curve for the thermistor but the
> resistance variation approached that of a chart I had for a Volvo B28F.
> Nothing seems to be binding in the linkage, throttle plates are closed
> at idle, air metering plate not binding.
> 
> 
> 
> I tried checking the frequency valve with a dwell meter attached to the
> orange wire on the diagnostic plug, but not sure I was reading the
> dwell correctly.  One book says read dwell on 4 cylinder scale, other
> books, including the Delorean manual do not say what scale so I assume
> they mean the 6 cylinder scale. I don't have a gas analyzer and cannot
> find anyone around that will check CO who knows the engine.
> 
> This car had been in storage for 5-7 years so I removed & cleaned the
> tank, cleaned the lines, and replaced the pump, cold start injector,
> control pressure regulator, injectors and fuel distributor with those
> from my wrecked D which had most of these components replace in the
> past 2 years.  Installed new accumulator, as well.
> 
> In addition, I installed a new thermistor, replaced most of the vacuum
> lines, checked for vacuum leaks in the system and did not find any.  
> 
> The past 2 days I've also noticed a new possible problem.  The car
> starts hard after sitting for several hours.
> 
> Thanks in advance for any suggestions or sites to look for answers.  I
> thought had troubleshot about every conceivable problem with the
> injection system but this one has me stumped.
> 
> Woody
> 
> 
> 		
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