1993 nissan pickup 2.4 liter back firing just rebuilt engine timing isnt 180 out distibuter isnt 180 out blowing embers out tailpipe and exhaust flutters

You own a V4 version? You have a prototype version that was stolen from the factory R & D department!

The mid-size pickup concept for SEMA also gets a wider track, a cold air intake, a cat-back exhaust, and all sorts of NISMO visual add-ons. Nissan dropped the Titan's 400-hp, 5.6-liter V-8 into a Frontier pickup to create this concept for SEMA. The Frontier is only available with a 3.8-liter V-6 from the factory.

Perhaps you mean STRAIGHT 4?

• Fig. 2.4L Engine Firing order: 1-3-4-2 Distributorless ignition system
• Fig. 3.3L Engine Firing order: 1-2-3-4-5-6
• Fig. 2.4L Engines Firing order: 1-3-4-2 Distributor rotation: Counterclockwise
• Fig. 3.3L engines Firing order: 1-2-3-4-5-6 Distributor rotation: Counterclockwise
• Fig. 2.4L Engines Firing order: 1-3-4-2 Distributor rotation: Counterclockwise
• Fig. 3.3L engines Firing order: 1-2-3-4-5-6 Distributor rotation: Counterclockwise

https://www.google.com/search?q=2004+Nissan+Frontier+firing+order

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Question moved from 'Garden' to Nissan Cars and Trucks.

2400 is 2400 cubic centimeters which is the same as 2.4 liters. It is an inline 4 cylinder engine, so there is 3 valves per cylinder making 12 valves total, normally 2 intake valves and one large exhaust valve.

The firing order is in the link, 1-3-4-2

https://www.google.com/search?q=1997+nissan+pickup+2.4+firing+order

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firing order is 1-3-4-2 is what the book said good luck

blue smoke indicates either a bad transmission modulator valve,or a manifold leak{intake} i usually do this test for a bad or suspected bad intake manifold leak,light a cigarette and take it around the intake manifold and look for it to glow really bright for an intake leak,for an exhaust leak you can see it blow the embers away from it.just make sure there's no gas around to ignite.always make sure that a fire ext.is onsite! thank you for choosing fixya.com!

I do not know if you have the 2.4L (4-Cyl) or the 3.0L V6; however I have included both below.

For the 2.4L DOHC In-Line 4-Cylinder:
Firing Order:
1-3-4-2
Cylinders:
(back)
...4
...3
...2
...1
(front)
Distributor:
.....(+)
3..........1
......O.....
4..........2
.....(+)

For the 3.0L V-6
Firing Order:
1-2-3-4-5-6
Cylinders:
....(back)
5.............6
3.............4
1.............2
....(front)
Distributor:
......6
1..........5
2..........4
......3

For the 1984 Nissan Pickup (listed under 1986) 2.4L

Firing Order:
1-3-4-2
Cylinders:
P.......Intake Side
u__
l |.|
l |.|.....1......2......3......4
e|.|
y......Exhaust Side

Distributor Connections:
......SIDES
Intake|Exhaust
....1...|...2
3.......|.......4
4.......|.......3
....2...|...1

Double check all your vacuum lines and make sure none have come loose or were damaged when the engine was rebuilt. Check any egr, pcv, mass sensors and make sure they are clean etc...Not as familiar with Nissan trucks but some Nissan cars were equipped with an anti-backfire valve.

You have the NAPS Z (nissan anti performance system haha) emissions engine. the dual plugs provide a hot spark for exhaust gas reburn and lowered tailpipe emissions. both plugs fire at the same time.
It is not really a good engine platform for high performance modification as its limited by the NAPS Z cross flow cylinder head design, its best to leave them mostly stock. I have owned several of the 720 king cab pu's and can attest to their durability, fuel economy, and reliability when properly tuned and maintained.

1993 Isuzu Pickup 2WD
2.3 liter SOHC L4


1993 Isuzu Pickup 2WD
2.6 liter SOHC L4 .......same as above


1993 Isuzu Pickup 2WD
3.1 liter V-6


4wd is the same specs as the 2wd.

2.4 liter = 1-3-4-2 and dist rotate counter clockwise

3.0 liter or 3.3 liter = 1-2-3-4-5-6 and dist rotates counter clockwise