Governor Pressure Test (NA4A-Hl)
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.
- Governor pressure test should only be used if vehicle shift speeds are different than specification. Install adapter and pressure gauge in governor pressure port. See Figure .
- Drive vehicle in "D". Read governor pressure at specified speed. See GOVERNOR PRESSURE SPECIFICATIONS table. If not within specification, clean and repair governor. Repeat test. If still not within specification, replace governor.
GOVERNOR PRESSURE SPECIFICATIONS
| Application | MPH | psi (kg/cm2 ) |
|---|---|---|
| B2200 EGI Fuel Injection | 19 | .70-1.26 (10-18) |
| B2200 EGI Fuel Injection | 34 | 1.61-2.38 (23-34) |
| B2200 EGI Fuel Injection | 53 | 3.22-4.20 (46-60) |
| B2200 Carbureted | 19 | .91-1.47 (13-21) |
| B2200 Carbureted | 34 | 1.96-2.80 (28-40) |
| B2200 Carbureted | 53 | 4.20-5.18 (60-74) |
| B2600 | 19 | .77-1.40 (11-20) |
| B2600 | 34 | 1.89-2.66 (27-38) |
| B2600 | 53 | 3.99-4.97 (57-71) |
| Miata (1993) | 19 | .77-1.40 (11-20) |
| Miata (1993) | 34 | 1.61-2.38 (23-34) |
| Miata (1993) | 53 | 3.36-4.41 (48-63) |
| MPV | 19 | .91-1.48 (13-21) |
| MPV | 34 | 1.83-2.60 (26-37) |
| MPV | 53 | 3.80-4.78 (54-68) |