Cutlass V6-262 4.3L DSL VIN V FI (1983)
FIGURE 2
5.
Loosen locknut (Figure 2) and slowly turn metering valve stop screw clockwise until idle speed drops approximately 10 RPM.
6.
Turn metering valve stop screw counterclockwise exactly 2-1/8 turns. Tighten lock nut.
7.
Check for fuel leaks around metering valve stop screw.
8.
Turn engine off.
9.
Remove magnetic tachometer probe and screened covers from intake manifold and reinstall parts removed.
FIGURE 3
10.
Fill in dealer code and date on the supplemental emission control label, part number 14057201 or equivalent (Figure 3). This label must be placed
next to the existing underhood emission control information label. Wash off the area with soap and water, dry thoroughly, and apply the new label.
PARTS INFORMATION
Part
Part Number
1.
EGR Vacuum Control Valve Assembly 22519396 or equivalent High Altitude Application
2.
Label 14057201 or equivalent
Suggested Time
The suggested time to perform the Low to High Altitude Adjustment and part replacement is 0.8 hour labor.
CONVERSION OF HIGH ALTITUDE SYSTEM TO LOW ALTITUDE
Dealers should advise owners moving to low altitude areas that they should purchase the following altitude adjustment procedure. This adjustment is
considered an owner maintenance expense. Diesel timing should be checked or adjusted at the same approximate altitude at which the vehicle will be
driven.