Do new petrol injectors need coding?
The data code is programmed into the engine control unit identifying to which cylinder the injector is fitted. new injectors to be coded to the engine control unit. Some earlier common rail injectors have no coding. So, if you replaced the injectors and you are fitting a different class you need to tell the ECU this.
How much does it cost to replace injectors on a BMW?
The Best in Auto Repair The average cost for a BMW 328i fuel injector replacement is between $1,085 and $1,217. Labor costs are estimated between $157 and $198 while parts are priced between $928 and $1,019.
Why does my fuel injector have a trouble code?
Regular fuel system maintenance such as fuel system cleanings can help to prevent obtaining a trouble code such as this. These cleaners will run through the fuel injectors, providing the lubrication that the small internal parts need to prevent the potential of broken return springs inside the fuel injector.
Can a fuel injector flow at the same rate?
That almost makes sense, but fuel injectors are either low or high resistance and they should all flow at the same rate otherwise you’d have different cylinder combustions. 370cc 550cc 750cc whatever the flow might be, it is all the same across all 6 or 8 cylinders for each injector.
What happens to fuel injector when engine is shut off?
Fuel injectors deliver fuel to the combustion chamber directly or indirectly. During its evolution; the fuel injector has moved from the intake manifold to the combustion chamber. Over time the nozzle of the injector can become dirty; and partially blocked. When you shut off your engine; the injector will soak up the heat of the engine.
Why are fuel injectors more sensitive to fuel condition?
On older multiport systems that fire the injectors simultaneously, the computer compensates by increasing the “on” time of all the injectors, which can create an overly rich fuel condition in the other cylinders. Direct fuel injectors are more sensitive to restrictions because of the precise amount of fuel they inject into the combustion chamber.