[T3] Warm Up oddity....

[Dave Hall]

The two things that occur to me are the auxiliary air regulator not opening
on a cold engine, which will not give you the faster idle speed you need
when cold, or the cylinder head temp sensor having too low a resistance when
cold.  Maybe the CHT sensor is faulty.   I don't have Jim's experience of FI
to know more than this.

If it feels like a carbed car with the choke operating (if you remember
those days!), those two sub-systems are effectively the choke in the FI
system - faster idle and richer mixture.

Dave.
UK VW Type 3&4 Club
=================== 

-----Original Message-----
From: type3-vwtype3.org-bounces at lists.vwtype3.org
[mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of J. Jonik
Sent: 10 September 2013 03:52
To: Type 3
Subject: [T3] Warm Up oddity....

This problem may have been discussed before, but not to the point of
solution.

T-3 FI 71...runs great..After about five miles warmup.  First five miles
have roughness, and hesitation, and maybe not great gas delivery.  By and
by, all is well.  At start up, car runs best with ten or so key turns to get
the fuel lines full...after some squeaks get higher and higher then go
away.   

  Question is...what component(s) are warmth-sensitive...that would perform
badly when cold, but resort to OK when warmed up?
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