Checks, in order
- Scan data and cylinderRead the codes and note if the misfire is on one cylinder or random.easy $ · under about $50
- Spark plugs and coilsSwap a suspect coil to another cylinder and see if the misfire follows. Turbo engines are hard on plugs, so check gap and wear.medium $$ · about $50 to $500
- Intake leaks and PCVInspect hoses and connections for cracks or a loose PCV line, which cause lean idle and codes.easy $ · under about $50
- Fuel qualityA bad tank of fuel can cause stumble and misfire. Fill with top tier fuel and see if the problem clears.easy $ · under about $50
- Injector and compression checkIf the simple items are good, a shop can test injectors and run a compression or leak-down test.hard $$$ · shop-level job, $500+
Applies to: 2024 and newer Tacoma with the 2.4L turbo i-FORCE (T24A-FTS) and the i-FORCE MAX hybrid, with the 8-speed automatic or the 6-speed manual. Platform is new, so checks lean on general practice and are labeled where they apply to only one powertrain.
Tools and parts for these checks
Links below are Amazon affiliate links: as an Amazon Associate, toyotadata earns from qualifying purchases, at no extra cost to you. Confirm fitment for your exact truck before you order.
| ITEM | USED FOR | BUY |
|---|---|---|
| Bluetooth OBD2 scanner with live data | Reading and clearing codes and watching live sensor data | Shop on Amazon |
| Ignition coil | Swapping a suspect coil after the misfire follows it | Shop on Amazon |
| Spark plugs | Replacing worn plugs at the factory interval | Shop on Amazon |
The same problem on other Toyotas
- 3rd Gen Tacoma (2016–2023): Rough idle, shaking at a stop or misfire (P0300 to P0306)
- 1st Gen Tacoma (1995.5–2004): Rough idle, misfire or lean codes (P0171, P0174, P0300)
- 5th Gen 4Runner (2010–2024): Rough idle, shaking, or misfire with a flashing check engine light
- 4th Gen 4Runner (2003–2009): Rough idle, misfire or hesitation
- FJ Cruiser (2007–2014): Rough idle, stumbling or a misfire code (P0300 to P0306)
- 100 Series Land Cruiser / Lexus LX 470 (1998–2007): Rough idle, stumbling or a misfire code (P0300 to P0308)
Other fuel & ignition problems on the 4th Gen Tacoma
More 4th Gen Tacoma problems
- 8-speed automatic shifting badly, flaring, shuddering or stalling (Transmission)
- Hesitation or clunk when pulling away or shifting from Park to Drive (Transmission)
- Hybrid truck won't go READY or shows a hybrid system warning (Hybrid System)
- Push the button: nothing happens, dead dash or slow crank (Starting & Charging)
- Loss of power, limp mode or boost warning on the turbo 2.4L (Engine)
- Temperature warning, coolant loss or overheating (Cooling)
All 15 4th Gen Tacoma symptoms in the interactive troubleshooter →
General guidance from owner experience. Confirm torque specs, fluid capacities and procedures in the factory service manual. Brakes, steering and anything structural: if in doubt, have a qualified shop inspect it before driving.