Cold Start Devices

Ti Kan ti at
Thu Dec 19 12:19:54 EST 2002

CTDiesel at writes:
> On an 87 4kq can someone tell me which device or decvices are responsible for
> enrichening the mixture during cold start?  Besides the Cold Start Valve
> which only is active for a few seconds.

With CIS-E (which is what the 87 4Kq has), the only cold start aid is the
CSV.  After start, cold running enrichment is provided by the differential
pressure regulator, under ECU control.

2003 A4 1.8T multitronic
2001 S4 biturbo 6-sp
1984 5000S turbo
1980 4000 2.0 5-sp
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