[DML] Re: Just wondering

["DMC Joe" <DMCJOE@xxxx>]

Richard,
Do a continuity test of the Idle Speed Microswitch. If it checks out OK the
Idle Speed ECU is probably defective.

DMC Joe / DeLorean Services / <dmcjoe@xxxx>
Web Site: <http://www.deloreanservices.com>

----------
> From: Richard Strecker <dmc1219@xxxx>
> To: News, DMC <dmcnews@xxxxxxxxxxx>
> Subject: [DML] Just wondering
> Date: Monday, August 23, 1999 6:46 AM
> 
> Would a bad coil capacitor cause the tach to read about
> double the actual RPM?

NO!
> 
> Could this cause a fast idle condition?

NO!

> The reason for the question is that a friend just purchased
> a "D" and has had a problen with fast idle (12 to 1500 RPM
> measured with an external tach). The tach on the dash reads
> about double the measured RPM.
> 
> He has replaced the idle control motor, coil, fuel pump,
> fuel filter and several other components. The throtle cable
> moves freely and the linkage doesn't seem to hang up any
> place. The micro switch is operating when it should. The
> frequency valve appears to be working in that you can hear
> the change in frequency as the engine warms up. He has not
> been able to get the dwell set due to the high idle speed.
> 
> I have searched the back issues of the DMCnews & it looks
> like he has covered most of the bases that have been tried
> before.
> 
> He's getting rather discouraged & I'm about out of ideas.
> ANY suggestions would be appreciated (well, almost any).
> 
> 
> Richard