Peugeot 405 firing order

1. Connect the distributor's B+ (battery) terminal to a switched 12-volt source, such as the ignition switch.

2. Connect the distributor's tach terminal to the tachometer signal wire, if you have a tachometer.

3. Connect the distributor's ground wire to a good engine ground.

4. Connect the distributor's #1 spark plug wire to the #1 spark plug on the engine. The #1 spark plug is usually located on the driver's side front cylinder.

5. Connect the remaining spark plug wires in firing order sequence to the distributor cap terminals. The firing order for a Buick 455 engine is 1-8-4-3-6-5-7-2.

6. Install the distributor cap and rotor.

FIRING ORDERS

Before carrying out extensive tests to isolate poor running problems, check connections of spark plug wires. This is especially important if plugs, wires, distributor, etc., have been disturbed recently for service. Obviously, this is not applicable to the wireless 4.7L engine.

NOTE To avoid problems, remove and tag the spark plug wires one at a time to ease reinstallation.
For vehicles with an extensive service history, keep in mind that the distributor 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 very important 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. 2.5L Engine Firing Order: 1-3-4-2 Distributor Rotation: Clockwise

Fig. 3.9L Engine Firing Order: 1-6-5-4-3-2 Distributor Rotation: Clockwise

Fig. 5.2L and 5.9L Engines Firing Order: 1-8-4-3-6-5-7-2 Distributor rotation: Clockwise

Fig. 4.7L Engine Firing Order: 1-8-4-3-6-5-7-2 Distributorless Ignition

Fig. 8.0L Engine Firing Order: 1-10-9-4-3-6-5-8-7-2- Distributorless Ignition
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See Figures 1, 2, 3 and 4
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: 2.5L Engine - Engine firing order: 1-3-4-2- Distributor Rotation: Clockwise

Fig. Fig. 2: 2.8L Engine - Engine firing order: 1-2-3-4-5- Distributor Rotation: Clockwise

Fig. Fig. 3: 3.1L Engine - Engine firing order: 1-2-3-4-5-6- Distributor Rotation: Clockwise

Fig. Fig. 4: 5.0L and 5.7L (VIN 8) Engines - Engine firing order: 1-8-4-3-6-5-7-2- Distributor Rotation: Clockwise
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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 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: 1988-95 4.3L Engines Firing Order: 1-6-5-4-3-2 Distributor Rotation: Clockwise
Fig. 2: 1996-98 4.3L Engines Firing Order: 1-6-5-4-3-2 Distributor Rotation: Clockwise
Fig. 3: 1988-95 5.7L and 7.4L Engines Firing Order: 1-8-4-3-6-5-7-2 Distributor Rotation: Clockwise
Fig. 3: 1996-98 5.7L and 7.4L Engines Firing Order: 1-8-4-3-6-5-7-2 Distributor Rotation: Clockwise

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: 300 cid (4.9L) inline six-cylinder engines Firing order: 1-5-3-6-2-4 Distributor rotation: Clockwise
Fig. 2: 232 cid (3.8L) V6 engine Firing order: 1-4-2-5-3-6 Distributor rotation: Counterclockwise
Fig. 3: 255 cid (4.2L), 302 cid (5.0L), 360 cid (5.9L), 390 cid (6.5L), 460 cid (7.5L) V8 engines Firing order: 1-5-4-2-6-3-7-8 Distributor rotation: Counterclockwise
Fig. 4: 351 cid W & M (5.8L), 400 (6.6L) engines Firing order: 1-3-7-2-6-5-4-8 Distributor rotation: Counterclockwise
Fig. 5: 6.9L diesel engines Firing order: 1-2-7-3-4-5-6-8

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. Fig. 1: 2.2L Engine Engine Firing Order: 1-3-4-2 Distributor Rotation: Clockwise


Fig. Fig. 2: 2.6L Engine Engine Firing Order: 1-3-4-2 Distributor Rotation: Clockwise

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. Fig. 1: 2.2L Engine Engine Firing Order: 1-3-4-2 Distributor Rotation: Clockwise


Fig. Fig. 2: 2.6L Engine Engine Firing Order: 1-3-4-2 Distributor Rotation: Clockwise

block distributor vacuum pipe,and the difference also check fuel filter free of water.