Why was injector cleaned?was there problem already that caused you to clean them?just one or the all of them?and was it done on the car or were they removed to clean?How were they cleaned.you may have an injector leaking and when left it floods a cylinder making it hard to start.check everything that was removed,look for any leaks or listen when idling for air leaks.You have not mentioned how it runs,whether it is rough or down on power,this will help us to track fault better.May be check that all the injector plugs are on the right ones.hope this helps.
ok,this fuel system runs in a loop.the fuel is held on pressure by a non return valve in fuel pump,the injectors being closed at rest,and the fuel pressure regulator being closed.If you are sure that the system is not bleeding out pressure through the injectors(symptom would be hard starting,with roughness until the cylinders cleared of fuel).the fault should only be at the pump or the regulator.The easiest way to fix most regs of leak is to 'pulse'the fuel pressure while the engine is running.The regulator lies at one end of the fuel rail,it will have a small vacuum hose to it as well as the fuel line running back to the tank.select an area of this fuel line that is rubber(will not work on steel,rigid pipe),squeeze it flat while the engine is running,and release,doing this 6-10 times.only hold flat for a second or 2 before releasing.This will usually cause the valve face internally to snap shut and open clearing the face of any contamination.I am unsure if your model is the same as the one we have here.the newer type engine they have is a little different in setup.Again though,I have seldom found a problem of this nature not caused by an area of the fuel system that was disturbed,not being assembled properly.Make sure that all electrical plugs have been reconnected to every sensor.If you have 2 pairs of vicegrip pliers.Stop engine.squeeze shut both the fuel delivery and fuel return hoses where they are rubber.leave for time you know causes start up problem,immediately prior to starting again,remove both pliers,if it is still hard to start,pressure is not leaking back to tank but into engine most probably.if it starts well,repeat test on just one of the lines.a failed start or good start will indicate which side is leaking pressure,pump or regulator.Hope this solves the problem for you
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I serviced fuel injector by removing it from engine. It was done by a authorised service guy. No fuel lekage from injector. Car running smoothly, I am getting problem only for starting. I think fuel is going back to fuel tank when I am stopping car engine.
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