[W126 Coupe] CIS-E Blues

[Dick Spellman]

Why not attach the Bosch CIS-E hose set up with the fuel pressure gauge 
and see if you are within the specs for upper and lower fuel pressures?  
This seems like a logical next step.  You should be able to measure both 
values and deduce the differential pressure which is in the manual.

Dick

Robert Karl Stonjek wrote:

> > That sounds more like an EZL issue - have you tested the ignition EZL ?
> >
> >
> > talbir
> >
> Passed with flying colours (dealer tested).  Besides, the EZL is still 
> in circuit when the EHA is disconnected, and the car runs fine (but 
> not as fuel efficient or responsive as it could be).
>  
> Unless the EZL can influence the operation of the CIS-E.  As far as 
> I'm aware, there is only one lead between the CIS-E and the EZL - the 
> Full Load Input which comes from the Throttle Valve Switch.
>  
> Thanks,
> Robert
>
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