LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 1985 >> 300ZX GL, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (EFI Control System) >> Component Testing >> Ignition System (Code 21)

Ignition System (Code 21)

WARNING: This page is about a different car, the 1985 Nissan Stanza. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect high tension cable from one spark plug and check hot spark during cranking. If okay, test is complete. If no good, perform EFI self-diagnosis.
  2. If self-diagnosis is okay, check distributor, ignition coil and high tension cable and repair or replace if necessary. If okay, replace IC ignition unit.
  3. If self-diagnosis was no good, check harness and repair if necessary. If okay, replace IC ignition unit and return to step 1).
scientia non olet · About LEMON Manuals