[DML] Re: High idle post tune up

["Toby Peterson" <Toby@xxxxxxxxxxxxxxxxxx>]

--- In dmcnews@xxxxxxxxxxxxxxx, "jpalatinus" <jpalatinus@...> wrote:

Joe - The first place that I would look is the white 9-pin bulkhead 
connector that is located just below the blue connector behind the 
coil cover.  Several of the pins in that white connector are involved 
in the idle speed circuit.  If you have a bad connection there due to 
contamination, corrosion, loose pins or sockets, etc., then the idle 
speed circuit will become "wonky" as our British friends would say.  
You would be well served to also check and verify all connections 
along the way in the idle speed circuit.  I assume that you have a 
proper wiring diagram that you can use for electrical diagnostics.  
Also, assuming (again) that you removed the intake manifold for all 
of this major tune-up work, you will want to make sure that the 
throttle quadrant rod and associated mechanisms are all correctly 
situated and working smoothly.  Make sure that the vacuum lines to 
the vacuum solenoid are correctly positioned per the vacuum diagram.  
That also makes a difference in timing and fuel control pressure at 
certain temperatures.

Toby Peterson  VIN 2248 "Winged1"
DMC Northwest
DeLorean Parts Northwest

>
> Anyway She used to idle right below 1000rpm.  Now she runs fine, 
but is idling so high (2500rpm) I thought something might be pulling 
the throttle. (nothing is)  I imagine that I disconnected some minute 
hose or some wire that is of critical importance to keeping a low 
idle.  Any ideas on what I screwed up?  Or better yet how to fix it?



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