The Quick Answer above is the generic definition. What follows is the model-specific detail for the Toyota models that log P219A.
DTC/P219A·Toyota
P219A on Toyota: Causes, Symptoms and Fix Cost
Quick Answer
Moderate SeveritySafe to drive (short-term)Toyota
P219A on a Toyota means the engine computer has found that the cylinders on bank 1 (the side with cylinder 1, or the whole engine on a four-cylinder) are not all running at the same air-fuel ratio. Depending on the manufacturer, it spots this from ripples in the upstream air-fuel ratio sensor signal, from small changes in crankshaft speed, or both. The usual causes are a leaking or clogged injector, an intake leak at one runner, an ignition or compression problem on one cylinder, or a faulty upstream sensor.
Typical repair cost, all makes€40 - €400
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Toyota Tundra 4.6 V8
2010-2019On the 4.6 V8 (1UR-FE), bank 1 is the bank with cylinder 1, the cylinder farthest from the transmission, and its per-cylinder codes cover cylinders 1, 3, 5 and 7. Toyota's manual uses P219A mainly for a rich-side imbalance found through the air-fuel ratio sensor, and separate codes (P219C, P219E, P21A0 and P21A2) that name a lean cylinder on that bank through crankshaft speed, so check for one of those alongside it.
Toyota Venza 2.7
2009-2016For the 2.7 four-cylinder (1AR-FE), Toyota's manual sets P219A when the difference in air-fuel ratio between cylinders exceeds its limit on two drives, and uses P219C to P219F to point to cylinders 1 to 4. Its checks run from exhaust and intake leaks through spark plugs, a spark test and compression to the injectors and deposits on the intake valves, and its tester can cut fuel to each cylinder in steps while watching misfire counts.
What causes P219A on a Toyota?
Beyond the generic causes listed on the main P219A page, these are the patterns noted for Toyota models:
Toyota Tundra 4.6 V8Fuel injector delivering more or less fuel than the others
Toyota Tundra 4.6 V8Intake or exhaust leak, ignition fault or low compression on one cylinder
Toyota Venza 2.7Injector fault on one cylinder
Toyota Venza 2.7Deposits on one cylinder's intake valve
How to diagnose P219A on a Toyota with OBD2
Follow these steps to pinpoint the root cause of P219A:
- Read every stored code and the freeze frame. Some manufacturers store a second code that names the weak cylinder, and any misfire, fuel trim or air-fuel ratio sensor code stored with P219A narrows the search
- Check the long-term fuel trims on a warm engine with a generic OBD2 reader. They show whether the bank as a whole is being corrected rich or lean, but not which cylinder is out of line
- On many newer cars the Mode 06 test results include a misfire count for each cylinder. A cylinder with a count well above the others is the first suspect, even if no misfire code is stored
- Check for intake leaks with a smoke test, paying attention to the gaskets and runners of individual cylinders, and look for exhaust leaks ahead of the upstream sensor
- Inspect the spark plugs and check the ignition coils, swapping a suspect coil to another cylinder to see whether the fault follows it
- Test the injectors. A workshop can use the manufacturer's tester to trim fuel to each cylinder in turn and watch the response, or flow and leak-test the injectors off the car; a generic reader cannot run these tests
- If the injectors and ignition check out, run a compression test and inspect the intake valves for deposits, then check the upstream air-fuel ratio sensor and its wiring
How much does P219A cost to fix on a Toyota? (EUR)
Estimated repair costs for P219A in EUR, compiled across makes. Toyota costs typically sit in the middle of each range.
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
Codes related to P219A
These codes are often seen alongside P219A or point to related issues, on any make:
Looking for the full P219A reference (all makes, full diagnosis flow, complete repair cost matrix)?
See the main P219A guideSkanyx · Toyota
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