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Re: Quad-4 (1228707 ECM) Rough Idle Problem



With the est connected the 747 initial timing dances around alot.  With it
disconnected, and at a slow idle hardly noticeable
Grumpy

>
> For other engine/ECM combinations, how stable is the advance
> at idle?
>
> -Will
>
> Ludis Langens wrote:
>
> > Will Remaklus wrote:
> > >
> > > To level set, this is a stock Quad-4 engine with a header.
> > > I have not (yet) modified the engine control program or any
> > > parameters.
> >
> > Lets step back a little:  Except for the header, the engine is stock.
> > You have the correct ECM for this engine.  You have the correct chip for
> > this engine and ECM.  Correct?
> >
> > Do you still have the original manifold?  It sounds like your engine
> > problems go beyond any mistuning caused by the header - so, go back to a
> > totally stock configuration and troubleshoot from there.
> >
> > --
> > Ludis Langens                               ludis (at) cruzers (dot) com
> > Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/
>
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