Re: Hot start probs/ Warm stall problem

[SailingFC@aol.com]

This sounds like a fuel pressure regulator problem.  It's mounted on the 
front of the engine and has one fuel line going in and one line coming out.  
It also has a 2-wire electrical plug attached to it.  When the engine warms, 
this unit cuts fuel pressure and therefore flow to the fuel distributor to 
help fuel economy.  When you shutdown the engine, it heatsoaks from the 
engine and then the engine is hard to start and/or runs rough on restart.  As 
you get running again, the fuel does a little cooling and as you drive, the 
airflow into the engine brings the temps down again.  Try unbolting it from 
the block and tie it off where it doen't touch the block.  Run around this 
way and take note if the problem re-occurs.  If not, you've found the problem.
HTH, GL.

-Dick-
'78 Scirocco
Original Owner


In a message dated 5/12/99 10:13:29 PM Pacific Daylight Time, 
mlogga1@triton.towson.edu writes:

> Hello all!  My 81 roc w/ 1.8 JH starts fine when it is stone cold, but
>  after it has run for a few minutes you have to lift the air flow plate in
>  the airbox in order to make it start again.  Once you do this it runs
>  fine.  I have checked the freq. valve, cold start valve, and all vacuum
>  hoses.  Could it possibly be the aux. air regulator?  Any ideas?

In a message dated 5/12/99 8:25:08 PM Pacific Daylight Time, 
ccastj1@prism.gatech.edu writes:

> Car = 85 8v US spec.  Car starts fine when cold, no problem there.
>  But...after warming up to normal operating temp (100C oil temp, coolant
>  temp gauge halfway) if i turn the car off for a few minutes, then on again
>  (it's still warm of course) the idle is low (550-750 rpm) and when i blip
>  the accellerator, it'll rev up fine, then drop down past idle and stall.
>  But if i let the car run for a couple minutes before blipping, everything
>  is fine!

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