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Cold starting problems HELP!
Just purchased a used 4000s 1.8l and am pretty happy with it.
I'd like to thank those people who responded to my questions a while
back when I was in the buying stage and unfortunately in sunny
Colorado I've never seen a 4000s /cs quattro or anything for under
$3500 so I think I got a fair deal ($2000) even though it's got high
mileage Anyway enough waffle here's the problem:
When I start her up in the morning she acts like a car with a
carburetor, splutters and when I put my foot on the gas it stalls.
After a min. or two it's fine.
Also it idles at 1100
I've checked the following:(using Bentley Manual)
1) Thermo time switch, when I unplug the connector on the cold start
valve it's much worse when starting so I assume it,s working.
2) Temperature sensor resistance OK.
3) Fuel pump current 8.4 amps when engine at idle, I checked at the
Here's a clue I think, when I bought the car it started perfectly and
idled lower 950rpm but I did notice that the idle stabilization valve
buzzed(hummed) when the ignition was switched on engine not running.
Now it doesn't buzz at all and when I unplug the 3 pin connector the
car idle doesn't change.
Idle stabilization valve you may say but I'm not willing to fork out
$150 for a new one so how do I check it with a multimeter if I get one
from a scrap yard ?
Thanks for all the good stuff