Line Pressure Test: Testing
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.
Start engine, depress brake pedal firmly, shift selector to "D" and read line pressure at idle. Depress accelerator fully and read line pressure as soon as RPM becomes constant, then release accelerator pedal. Shift selector to "N" and idle engine for one minute. Read line pressure at idle and stall speeds for each range in the same manner. Compare with LINE PRESSURE SPECIFICATIONS table and LINE PRESSURE TEST RESULTS .
CAUTION:
Line pressure test generates very high temperatures.NEVER hold throttle wide-open for more than 5 seconds. DO NOT
test more than 2 gears without idling engine to cool off fluids.
LINE PRESSURE SPECIFICATIONS
| Application & Gear Position | Idle Speed psi (kg/cm2 ) | Stall Speed psi (kg/cm2 ) | |
|---|---|---|---|
| B2200 | |||
| "D" Or "1" | 43-57 (3.0-4.0) | 135-164 (9.5-11.5) | |
| "2" | 85-166 (5.9-11.7) | 142-172 (9.9-12.0) | |
| "R" | 75-95 (5.1-6.7) | 252-279 (17.7-19.6) | |
| B2600 & MPV | |||
| "D" Or "1" | 43-57 (3.0-4.0) | 162-191 (11.3-13.4) | |
| "2" | 146-228 (10.3-16.0) | 203-232 (14.3-16.3) | |
| "R" | 80-100 (5.6-7.0) | 317-344 (22.3-24.2) | |
| Miata 1993 | |||
| "D" Or "1" | 43-57 (3.0-4.0) | 135-164 (9.5-11.5) | |
| "2" | 148-164 (10.4-11.6) | 143-171 (10.0-12.0) | |
| "R" | 101-121 (7.1-8.5) | 326-369 (22.9-25.9) | |
| Miata 1994 | |||
| "D" | 42-52 (2.9-3.7) | 116-132 (8.1-9.3) | |
| "S" | 114-133 (8.0-9.4) | 116-132 (8.1-9.3) | |
| "L" | 43-57 (3.0-4.0) | 128-156 (9.0-11.0) | |
| "R" | 113-140 (7.9-9.9) | 286-314 (20.1-22.1) | |