1994 MIATA Additional Line Pressure Test
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1994 Mazda MX-5 Miata, 1992 Mazda MX-5 Miata, 1992 Mazda MPV, 1992 Mazda B2200, and 1991 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
This additional line pressure test should only be performed on 1994 Miata. Connect gauge to right side inspection hole. Connect a vacuum pump to vacuum modulator and place in vehicle. Shift to "R" with engine at idle, note pressure at specified vacuum. Compare with the ADDITIONAL LINE PRESSURE TABLE - 1994 MIATA.
ADDITIONAL LINE PRESSURE
| Vacuum | psi (kg/cm2 ) |
|---|---|
| 0 in. Hg (Atmospheric Pressure) | 128-156 (9-11) |
| 8 in. Hg | 100-114 (7-8) |
| 16 in. Hg | 57-71 (4-5) |