Injector Coding
Injector coding means entering each injector's calibration code into the engine control unit after replacement.
What is Injector Coding?
Common rail injectors have small flow differences; the code tells the control unit how to correct them. The code is printed on the injector. A diagnostic tool is needed. Codes are often called IMA, QR or C2I codes depending on the manufacturer. Some petrol direct injection systems also use injector coding.
How it works
The control unit adjusts injection time per injector using the code.
Why it matters for your car
Skipping coding can cause rough running, smoke and higher emissions. Note codes before removing injectors.
Other terms
- ACEA Oil Specification
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- Breakaway Cable
- Coil Spring
- Coolant Level Sensor
- Engine Warm-up
- Heat Pump
- Load Index
- Manufacturer Plate (Type Plate)
- Mechanic’s Creeper
- Oil Pump
- Primer (Primer Surfacer)
- Remanufactured Parts
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