What is the firing order for this vehicle?

2004 SUZUKI FORENZA
200,000 MILES • 2.0L • 4 CYL • 2WD
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CHEST0722
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backfiring, bad pick up.
May 14, 2022 at 9:52 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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JACOBANDNICKOLAS
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Hi,

If you look at pic 1, it provides the firing order. Pic 2 shows the cylinder orientation.

If you haven't worked on the ignition system, the firing order shouldn't have changed. Oftentimes, a backfire is caused by either a lean or rich fuel mixture. Do you notice any black smoke from the exhaust?

Take a look through this link and let me know if it is helpful in any way:

https://www.2carpros.com/articles/engine-backfires-while-running

Also, do you know if the timing belt has been serviced in the past?

Let me know.

Joe

See pics below.
May 14, 2022 at 10:15 PM
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CHEST0722
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i need the firing order please. The plugs were put on by the length of the wire for 2004 Suzuki Forenza. If got throttle body going crazy. Please give me the firing order only.
May 15, 2022 at 5:22 PM
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STRAILER
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It should have numbers on the ignition coil to match up to the firing order, here is a diagram for you to look at the number should be in this area. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
May 16, 2022 at 1:27 PM
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CHEST0722
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need firing order, the wire was put on using the length of the wire, mistake. What is the firing order? The throttle is going crazy.
May 16, 2022 at 5:27 PM (Merged)
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SQM
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Hello,

The firing order for this engine is 1-3-4-2.
The number 1 cylinder is the one on the left side (if you are facing the engine).

See diagram below for reference.

Let me know of any questions.

Thank you.
May 16, 2022 at 5:27 PM (Merged)