Re: Eratic engine idle when warm

["jtrealtywebspannet" <jtrealty@xxxx>]

The first thing that comes to mind would be to monitor the battery 
voltage as the engine is going through these cycles. If the voltage 
drops as the frequency valve is stopping and the goes up as the engine 
speeds up it would seem to be either a battery, connection, cable, or 
charging system problem. I would also watch the voltage on the lambda 
relay, maybe it is a sensitive or bad relay or just a dirty 
connection. I would think this is not a fuel system problem as much as 
it might be an electrical problem. Maybe even a bad alternater that 
can't put out enough at idle? If the freq valve was bad it wouldn't do 
this, it just wouldn't work at all. Check the plug going to it for a 
bad connection. Inspect the connections going to the idle motor too.
David Teitelbaum
vin 10757


--- In dmcnews@xxxx, "dmcman82" <srubano@xxxx> wrote:
> Hello all,
> I am experiencing a problem with my D that has me puzzled. I started 
> it up for the first time in 5 months and it started with no problem 
> at all. as the engine sat idling for a few minutes until it reached