LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 1990 >> Sentra Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/O Codes >> Engine Stall >> During Start-Up
April 5, 2026: LEMON Manuals is launched! Read the announcement.

During Start-Up

  1. Ensure ignition timing is within specification.
  2. Inspect throttle body ports and valves for deposits, wear or plugging. Clean or replace as necessary.
  3. Connect inductive timing light to spark plug wire and check for weakness in flash.
  4. Ensure spark plug wires are within allowable resistance values.
  5. Check for spark using spark tester.
  6. Ensure engine has adequate compression.
  7. Remove canister purge line from intake and test drive vehicle.
  8. Remove vacuum hose from fuel pressure regulator. Apply vacuum and pressure and monitor symptom change.
  9. Disconnect exhaust gas sensor and monitor change in driveability. If it improves, replace sensor. If not, go to 10.
  10. Enter self-diagnostic Mode II and monitor fuel metering system operation.
scientia non olet · About LEMON Manuals