Light injection

Hello;
The problem I have with my MGF 1.8 VVC is that the injection light does not go out and there has been 120 km/ha sometimes flashes and pulls, the light becomes fixed and another goes well. The coils, cables and spark plugs have changed but the breakdown continues.
If you can hire myself because I am bored.

You can have problems with the pressure of gasoline, but because of what you say qa 120 if it has double camshaft can be humping the phase sensor or that the point is running

Thank you. I will look at you and tell you

Pressure of the fuel pump, pressure regulator, correct or damaged spark plug If it is a specific cylinder, check spark plugs or injector and change the defective position of position, if the missfire appears in the new position, your problem should be the injector.

Well, I throw you high, it means that there
you have to check that the gasoline pump will throw the precion corresponding, with a fuel manometro.
If that gives the pump problem
(I think it has to give 3 bar when you give it contact and 6 to 8 when you start and turn it off and you would be the valve, it has to stay there for about 20 min cannot go down from 6 bars, I think, to make it more generally, you can not lose more than 1.5 bar)
good discarding that, the following is the check of rotation sensors, both as a rpm of cranks or if you have a rp.
If all that does well, I wake up to go for oxygen and etc.
Once you download any sensor problem you already have to see if the wiring has signal losses

if you can connect the car to a serious scanner, it will tell you where it has the failure and start looking for there

I hope to break you in some help
.