In the last few days, I’ve had a lot of trouble with injectors and come to the following conclusion: that with the used injectors of classified ads, instead of buying them correctly, I make sense to a certain point. Only what I’ve heard is that injectors change their injector image after a few thousand km, the motor control unit calculates the change and fits quasi “imaginary” the IMA code (stands for a particular injector image) without putting it off somewhere so that you could read out the new IMA code (if I’m properly informed). As long as the injectors always remain in the same car and piston, that doesn’t matter. But as soon as you expand the injector and build it into another car, that becomes a problem: In the case of small ads bought only a few of them (there is no test protocol) you have no choice but to take the IMA code on the injector again. But this IMA code no longer agrees with the actual injector image, since you have to make sure that one of them changes to the device.