i-CTDi and i-DTEC: Honda Diesel Engines with Common Rail Direct Injection System
i-CTDi and i-DTEC are names for turbocharged diesel engines equipped with the Common Rail direct fuel injection system. They have been used in Honda cars since 2002. These engines are an exclusive development of the Honda Motor Company. They are known for being reliable and maintainable and also help reduce fuel consumption.
FEATURES OF I-CTDI, I-DTEC ENGINES
The i-CTDi and i-DTEC engines have 4 cylinders and 16 valves. The engine block is made of aluminum with cast iron cylinder liners. This reduces the engine’s weight and allows it to warm up faster. The cylinder head is aluminum. 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 | Start of Production | Honda Models Equipped with This Engine Type |
| 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 |
| Hard engine start in cold weather. | N22A; N22B |
| The valve timing chain tends to stretch even at low mileage. | N22A |
| The turbocharger often fails. | N22A |
| The exhaust manifold often cracks. | N22A |
| The EGR valve clogs quickly and its intake pipe cracks. | N22A; N22B |
| The crankshaft damper pulley may break prematurely. | N22A |
| Piezoelectric injectors often fail. | N22B; N16A |
| The low-pressure fuel pump fails if the fuel filter is not replaced on time. | N22B |
| The diesel particulate filter clogs prematurely. | N16A |