# Ignition timing — normal control check (NA8)

Canonical URL: https://miatatorque.com/spec/ignition-timing-normal-control-na8/

Applicability: NA 1994–1997 (BP) — Other years inferred from 1994 factory evidence.

Confidence: fsm

6–18° BTDC

Always confirm against your factory manual. Match every restriction and follow all stages and procedure notes. Disputed claims must not be automatically resolved. The complete record below preserves every printed unit, source claim and procedure.

```json
{
  "id": "ignition-timing-normal-control-na8",
  "name": "Ignition timing — normal control check (NA8)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NA",
      "years": [
        1994,
        1997
      ],
      "engines": [
        "BP"
      ],
      "note": "Other years inferred from 1994 factory evidence."
    }
  ],
  "kind": "non-torque",
  "value_text": "6–18° BTDC",
  "procedure": {
    "notes": "Warm engine to normal operating temperature; turn all accessories off and wait for coolant fan to stop. Connect timing light/tachometer as specified by the factory procedure. Do not ground the blue one-pin power connector. Disconnect SST or TEN-to-GND jumper before checking this range; verify that timing advances when engine speed is increased. This is not the test-mode base timing setting."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-1994",
      "page": "B–9 (PDF p.46)",
      "as_printed": "Ignition timing: BTDC 6—18°",
      "verified_years": [
        1994,
        1994
      ],
      "document": {
        "id": "fsm-1994",
        "tier": 1,
        "title": "1994 Mazda MX-5 Miata Workshop Manual",
        "covers": [
          {
            "gen": "NA",
            "years": [
              1994,
              1997
            ],
            "engines": [
              "BP"
            ]
          }
        ],
        "note": "Mazda's base manual for 1994–97; later model years got supplements, which we haven't checked yet."
      }
    },
    {
      "source": "fsm-1994",
      "page": "F–77 (PDF p.226)",
      "as_printed": "Ignition timing: BTDC 6—18°",
      "verified_years": [
        1994,
        1994
      ],
      "document": {
        "id": "fsm-1994",
        "tier": 1,
        "title": "1994 Mazda MX-5 Miata Workshop Manual",
        "covers": [
          {
            "gen": "NA",
            "years": [
              1994,
              1997
            ],
            "engines": [
              "BP"
            ]
          }
        ],
        "note": "Mazda's base manual for 1994–97; later model years got supplements, which we haven't checked yet."
      }
    }
  ],
  "jobs": [],
  "system": "ignition-electrical",
  "component": "inventory-pass-2026-10",
  "componentName": "Service measurements and fasteners",
  "sequence_diagrams": [],
  "url": "https://miatatorque.com/spec/ignition-timing-normal-control-na8/"
}
```