Need 97 Pontiac Sunfire 2.2L (VIN 4) Engine Firing Order Diagram

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• FIRING ORDERS

GM Cavalier/Sunfire 1995-2000 Repair Guide

FIRING ORDERS

Print
See Figures 1 and 2
To avoid confusion, remove and tag the spark plug wires one at a time, for replacement.
If a distributor is not keyed for installation with only one orientation, it could have been removed previously and rewired. The resultant wiring would hold the correct firing order, but could change the relative placement of the plug towers in relation to the engine. For this reason it is imperative that you label all wires before disconnecting any of them. Also, before removal, compare the current wiring with the accompanying illustrations. If the current wiring does not match, make notes to reflect how your engine is wired.

Fig. Fig. 1: 2.2L (VIN 4) Engine Firing Order: 1-3-4-2 Distributorless Ignition System

1994 Pontiac Grand Am 3.1L 6-cylinder Firing Order



Fig. 3.1L (VIN M) Engine Firing Order: 1-2-3-4-5-6 Distributorless Ignition System.

One can verify that this Firing Order Diagram applies to your 1994 Grand Am, by making sure that the 8th digit of VIN is "M" (for this 6-cyl 3.1L engine type), and the 10th digit of VIN is "R" (for model year 1994).

If you're looking for the firing order diagram, this is it:

FIRING ORDERS NOTE: To avoid confusion, remove and tag the spark plug wires one at a time, for replacement. If a distributor is not keyed for installation with only one orientation, it could have been removed previously and rewired. The resultant wiring would hold the correct firing order, but could change the relative placement of the plug towers in relation to the engine. For this reason, it is imperative that you label all wires before disconnecting any of them. Also, before removal, compare the current wiring with the accompanying illustrations. If the current wiring does not match, make notes in your book to reflect how your engine is wired. Fig. 1: 3.1L Engine Firing Order: 1-2-3-4-5-6 Distributor Rotation: Clockwise
Fig. 2: 3.4L Engine Firing Order: 1-2-3-4-5-6 Distributorless Ignition
Fig. 3: 3.8L Engine Firing Order: 1-6-5-4-3-2 Distributorless Ignition

firing order

It is stamped on the top of the engine, in the head. It is usually pretty easy to find, and you wont have to remove any pieces to see it.

To avoid confusion, remove and tag the spark plug wires one at a time, for replacement.

The 3.5L (VIN H) engine's unique ignition system has the ignition coils directly over each plug. No spark plug wires are used.
If a coil is replaced on any of the 3.1L, 3.4L or 3.8L engines, it may not be numbered, as is the factory coil. For this reason it is imperative that you label all wires before disconnecting any of them. Also, before removal, compare the current wiring with the accompanying illustrations. If the current wiring does not match, make notes in your guide to reflect how your engine is wired.



Fig. 3.1L (VIN M) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System



Fig. 3.4L (VIN X) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System



Fig. 3.4L (VIN E) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System



Fig. 3.5L (VIN H) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System



Fig. 3.8L (VIN 1) engine Firing order: 1-6-5-4-3-2 Distributorless Ignition System



Fig. 3.8L (VIN K) engine Firing order: 1-6-5-4-3-2 Distributorless Ignition System

The firing order for the 3.1L VIN M, 3.4L VIN E, 3.4L VIN X and 3.5L VIN H engines is 1-2-3-4-5-6. The right bank cylinders are on the cowl side (rear) of the engine compartment and are numbered 1,3,5, left bank cylinders on the front side of the vehicle, are numbered 2,4,6.
The firing order for the 3.8L VIN K and 3.8L VIN 1 engines is 1-6-5-4-3-2. Starting at the front of the engine, cylinders in the left bank are numbered 1,3,5 and cylinders in the right bank are numbered 2,4,6

Hope helped (remember rated this help) Good luck.

FROM LEFT TO RIGHT, 5/2 3/6 4/1. ASSUMING YOU HAVE THE 3.1L ENGINE.