i-CTDi and i-DTEC are names of diesel turbocharged engines with the Common Rail direct fuel injection system. They have been used in Honda cars since 2002. These engines are a proprietary development of the Honda Motor Company. They are known for being reliable and maintainable and also help to reduce fuel consumption.
Features of i-CTDi, i-DTEC engines
i-CTDi and i-DTEC engines have 4 cylinders and 16 valves. The engine block is made of aluminium and its cylinder liners of cast iron. This reduces the engine weight and allows it to warm up faster. The cylinder head is aluminium. The valve timing mechanism uses a chain. All versions are equipped with a variable-geometry turbocharger.
Popular i-CTDi, i-DTEC engines
| Version name | Code | Capacity, L | Max. output, hp | Max. torque, N·m | Production start | Honda models equipped with this type of engine |
| i-CTDi | N22A | 2.2 | 140 | 340 | 2002 | Accord VII; CR-V III; Civic VIII; CR-V II; FR-V IV |
| i-DTEC | N22B | 2.2 | 150−180 | 350−380 | 2008 | Accord VIII; Civic IX; CR-V VI; CR-V III |
| N16A | 1.6 | 120−160 | 300−350 | 2013 | Civic IX; CR-V IV; Civic X; HR-V II |
Common malfunctions of i-CTDi, i-DTEC engines
| Malfunctions | Engines |
| Difficult engine start in cold weather. | N22A; N22B |
| The valve timing chain is prone to stretching even at low mileages. | N22A |
| The turbocharger often breaks down. | N22A |
| The exhaust manifold often cracks. | N22A |
| The EGR valve gets clogged quickly and its intake pipe cracks. | N22A; N22B |
| The crankshaft damper pulley can break prematurely. | N22A |
| The piezoelectric injectors often fail. | N22B; N16A |
| The low-pressure fuel pump breaks down if the fuel filter is not replaced in time. | N22B |
| The diesel particulate filter gets clogged prematurely. | N16A |
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