Honda Fit / Jazz Jerking Acceleration? Why Ignition Coils Are the Usual Suspect (30520-PWA-003)

If you own a first or second-generation Honda Fit (also known as Honda Jazz in Europe/Asia), you might have experienced this scary symptom:

You are stopped at a traffic light. The light turns green, you step on the gas, and the car hesitates, stutters, or jerks violently before finally speeding up. It feels like the transmission is slipping.

Good news: It is likely NOT your transmission.
The Truth: It is almost certainly a failed Ignition Coil Pack, a known weak point of the Honda i-DSI engine.

At Automotive-leader, we help thousands of Honda owners fix this issue cheaply. In this guide, we’ll show you why they fail and which part (usually 30520-PWA-003) you need.

1. The "i-DSI" Engine Quirk: 8 Coils?

Most 4-cylinder engines have 4 spark plugs and 4 coils.
But the Honda Fit/Jazz (1.3L / 1.5L i-DSI) is special. It has Dual Spark Plugs per cylinder.
This means your small car has 8 Ignition Coils in total!

• Front Bank (4 Coils): Located near the intake, usually reliable.

• Rear Bank (4 Coils): Located near the hot exhaust, tucked under the manifold.

Why does this matter?
The Rear Coils (Part # 30520-PWA-003) fail much faster because they are trapped in high heat. Many mechanics are lazy and only change the front ones, leaving your car still misfiring.

👉 [Read More: Engine Misfire Guide: Is It Spark Plugs or Ignition Coils?]

2. Symptoms of Bad Honda Fit Coils

How do you know it's the coil and not the CVT transmission?

1. "The Hiccup": The car feels like it missed a beat while driving at steady speeds (40-60 km/h).

2. Uphill Struggle: The engine shakes when going up a hill under load.

3. Low Speed Jerk: Stuttering when taking off from a stop.

4. No Check Engine Light: Surprisingly, Honda Fits often don't throw a Check Engine Light even when misfiring badly.

3. The Fix: Replace the Rear Set (30520-PWA-003)

If your car has over 60,000 miles (100,000 km), we highly recommend replacing all 4 Rear Coils at once. If one has cracked insulation, the others are not far behind.

The Part You Need:

• Part Number: 30520-PWA-003 (Also replaces 30521-PWA-003 / Hitachi U09006-COIL)

• Position: Rear Bank (Exhaust Side)

Why choose Automotive-leader coils?
Our replacement coils feature upgraded high-temperature epoxy and superior rubber boots to prevent the "arcing" (voltage leaks) that kills the stock Hitachi coils.

👉 [Buy Now: Rear Ignition Coil Set for Honda Fit / Jazz (30520-PWA-003)] 

4. DIY: How to Change Them (15 Minutes)

You don't need to pay a mechanic $200 for labor. This is one of the easiest repairs on a Honda Fit.

1. Tools: A 10mm socket wrench is all you need.

2. Access: You might need to unclip a wiring harness to get room for the rear coils.

3. Unbolt: Each coil is held by one 10mm bolt. Remove it.

4. Swap: Pull the old coil out (it might make a "pop" sound). Insert the new one. Tighten the bolt snug (do not overtighten!).

Pro Tip: Inspect your spark plugs while you are there. If they are old, change them too.

5. Conclusion

Don't let a mechanic talk you into a transmission rebuild. If your Honda Fit is jerking, spend 

$60-$

80 on a new set of ignition coils first. 90% of the time, that's the fix.

Get your car running smooth again:

• Shop Rear Coils (30520-PWA-003): [Link Here]