Re: fool boiler & SportsCar on 'EFI'

[ti@amb.org (Ti Kan)]

glen writes:
> What's the diff between CIS and CIS-E? CIS-E has the =
> 'electronically-assisted mixture control' via Lambda sensor and freq =
> valve and CIS is 100% mechanical?

To be nit-picky...  Pre-1980 CIS is strictly mechanical, Post-79
CIS uses a frequency valve driven by an ECU for mixture control.
The frequency valve is a separate component than the fuel distributor.
CIS-E uses the differential pressure regulator (also driven by the ECU)
for mixture control, and the DPR is an integral part of the fuel
distributor.  One characteristic of CIS-E is the lack of a control-pressure
regulator, because the DPR assumes that role too.

-Ti
96 A4 2.8 quattro
84 5000S 2.1 turbo
80 4000 2.0
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