P219E on Audi
Cylinder 3 Air/Fuel Ratio Imbalance
P219E on Audi vehicles indicates cylinder 3 air/fuel ratio imbalance. Au7o has documented this code across 3 Audi models — most commonly on A4, Q5, SQ5. Generic SAE J2012 code. Sets when the PCM detects that the air/fuel mixture entering cylinder 3 is too rich, too lean, or fluctuating excessively relative to the other cylinders on its bank. The module monitors per-cylinder contribution using the heated oxygen / air-fuel sensors together with crankshaft and camshaft position sensors. It is an imbalance fault, not a misfire.
Common Causes of P219E
- •Faulty or clogged fuel injector on cylinder 3
- •Intake air / vacuum leak near cylinder 3
- •Damaged spark plug or ignition coil on cylinder 3
- •Malfunctioning upstream oxygen / air-fuel sensor
- •Contaminated MAF sensor
- •Fuel pressure problems (pump or regulator)
- •Worn valve seals or rings on cylinder 3
P219E on Audi by Model
Audi A4(1 issue)
- 2009-2021 A4 2.0T Gasoline-Quality Deposit Diagnosis - TSB 2014753/132009-2021
Audi states that contaminated gasoline or gasoline with insufficient deposit-control additives can contribute to deposits on intake valves, the intake manifold, fuel injectors and combustion chambers. Possible results include rough running after cold start, extended cranking, hesitation, rough idle, reduced performance, poor fuel economy or an MIL with supported misfire, lean-system or cylinder-imbalance faults. This does not establish a universal A4 2.0T intake-valve defect, mandatory walnut-blasting interval or fixed failure mileage.
Audi Q5(1 issue)
- 2009-2025 Q5 Gasoline-Quality Deposit Diagnosis - TSB 2014753/132009-2025
Audi states that contaminated gasoline or gasoline with insufficient deposit-control additives can contribute to deposits on intake valves, the intake manifold, fuel injectors and combustion chambers. Possible results include rough running after cold start, extended cranking, hesitation, rough idle, reduced performance, poor fuel economy or an MIL with misfire, lean-system or air/fuel-ratio-imbalance faults. This does not establish a universal Q5 intake-valve defect, a mandatory walnut-blasting interval or a fixed failure mileage.
Audi SQ5(1 issue)
- Fuel-Quality or Deposit-Related Rough Running and Misfire Diagnosis2014-2025
Audi states that contaminated gasoline or gasoline with insufficient deposit-control additives can contribute to deposits in injectors, combustion chambers, the intake manifold and intake valves, with rough running, hesitation, reduced performance, poor fuel economy or related ECM faults. This does not establish a universal SQ5 intake-valve defect, a mandatory walnut-blasting interval or a fixed mileage. Audi separately warns that unapproved fuel additives are not permitted on 2018-2025 EA839 V6 TFSI SQ5 models because a negative effect on engine life cannot be ruled out.
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View P219E across all makes →Frequently Asked Questions
What does P219E mean on Audi?▼
P219E stands for "Cylinder 3 Air/Fuel Ratio Imbalance." Generic SAE J2012 code. Sets when the PCM detects that the air/fuel mixture entering cylinder 3 is too rich, too lean, or fluctuating excessively relative to the other cylinders on its bank. The module monitors per-cylinder contribution using the heated oxygen / air-fuel sensors together with crankshaft and camshaft position sensors. It is an imbalance fault, not a misfire. On Audi specifically, this code is documented across 3 models.
What causes P219E on Audi vehicles?▼
Common causes on Audi: Faulty or clogged fuel injector on cylinder 3, Intake air / vacuum leak near cylinder 3, Damaged spark plug or ignition coil on cylinder 3, Malfunctioning upstream oxygen / air-fuel sensor, Contaminated MAF sensor. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P219E on a Audi?▼
Repair costs vary widely depending on the root cause and specific Audi model.
Which Audi models have P219E documented?▼
Au7o has documented P219E on 3 Audi models: A4, Q5, SQ5.