GM 3.4 firing order
GM CENTURY, LUMINA, GRAND PRIX, INTRIGUE 1997-2000 FIRING ORDERS REPAIR GUIDE
3.1L (VIN M) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System
3.4L (VIN X) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System
3.4L (VIN E) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System
3.5L (VIN H) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System
3.8L (VIN 1) engine Firing order: 1-6-5-4-3-2 Distributorless Ignition System
3.8L (VIN K) engine Firing order: 1-6-5-4-3-2 Distributorless Ignition System
