Fuel Control Pressure Test question?

[80TargaSC]

Hi all,

The reason for this test is the cold start issues:
-Kept foot on gas pedal to keep idle up running a couple of minutes in the first start regardless of weather cold or warm.

Why did the part # 0280160.324 installed in location of AAV? It is a Decel valve not an AAV.Is it cause the cold start issued?

-when it warmed up idle stabled at 950 rpm and ran very well.

-Some vacuum device checked:
AAR opened when cold and closed when warm.
Opened oil cap idle changed very a little bit then stabilized.


Please help to determine below testing results are within specs, out of specs or right on border of marginally still good or need to rebuild.

Thank you so much.
Khuong

Fuel Control Pressure Test on 1980 Targa SC

WUR Bosch Part #:
0438.140.089

Temperature C:
17.6

System Pressure:
4.85

Cold Pressure:
1.1

Warm Pressure without / with / time:
1.1 / 1.8 / 00:00
1.8 / 2.0 / 00:01
2.3 / 2.7 / 00:02
2.7 / 3.2 / 00:03
2.8 / 3.4 / 00:04
2.8 / 3.4 / 00:05
2.8 / 3.4 / 00:06
2.8 / 3.4 / 00:07
2.8 / 3.4 / 00:08
2.8 / 3.4 / 00:09
2.8 / 3.4 / 00:10

Residual Pressure:
Closed valve:
4.8
Shut down FP:
2.6
After 10 miuntes:
1.6
After 30 miuntes:
1.6

Thanks again.
Khuong