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:
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 10:22 AM
STRAILER
✓Experienced Mechanic
55,548 POSTS
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.