Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMAZDA1999MX-5 MIATA L4-1.8L DOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESPID/DATA MONITOR AND RECORD PROCEDURE
1999 Mazda MX-5 Miata L4-1.8L DOHC
PID/Data Monitor and Record Procedure
1999 Mazda MX-5 Miata L4-1.8L DOHCSECTION PID/Data Monitor and Record Procedure
NOTE:
- This is a specific function.
1. Perform the NGS tester Hook-up Procedure.
2. Perform steps 1 through 8 from the DTCs Reading Procedure.
3. Turn the ignition switch on or engine running.
4. Move the cursor to PID/DATA MONITOR AND RECORD. Press the trigger key to enter this selection.
5. Move the cursor to PID values to view. Press the trigger key. A star symbol will appear next to the item when it is selected.
NOTE:
- Press the trigger key once again to deselect a PID.
- Press CLEAR to deselect all PIDs.
6. Press START to begin.
7. When ready to capture and store the selected PIDs press the trigger key.
8. Press the trigger key again when ready to save information.
9. Move the cursor to STORE RECORDING IN AREA 1. Press the trigger key.
10. Follow the instructions displayed on the NGS tester to save the recording data.
- This is a specific function.
1. Perform the NGS tester Hook-up Procedure.
2. Perform steps 1 through 8 from the DTCs Reading Procedure.
3. Turn the ignition switch on or engine running.
4. Move the cursor to PID/DATA MONITOR AND RECORD. Press the trigger key to enter this selection.
5. Move the cursor to PID values to view. Press the trigger key. A star symbol will appear next to the item when it is selected.
NOTE:
- Press the trigger key once again to deselect a PID.
- Press CLEAR to deselect all PIDs.
6. Press START to begin.
7. When ready to capture and store the selected PIDs press the trigger key.
8. Press the trigger key again when ready to save information.
9. Move the cursor to STORE RECORDING IN AREA 1. Press the trigger key.
10. Follow the instructions displayed on the NGS tester to save the recording data.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.