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I had to change the engine on my Focus 1.6 Ecoboost. It is ruinning and driving perfect. But the engine management light keeps coming on with the code P0016. I have changed the Crank and Cam sensors and the light keep coming back on. A friend told me the injectors might be coded to the ECU, as he has a Skoda and had to take it to a Main Dealer to change an injector because they had to recode the new one. Does anyone know if the Ecoboost injectors or Engines even are coded different to different ECU's??

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The problem might not be with your injectors. As you say p0016 is camshaft/camshaft timing issue. Changing parts roulette is an expensive game, there's no point in just replacing stuff for the sake of it. Are you sure the wiring isn't broken/ bad connection?

But yes, they will be coded, but you can do it yourself with a free piece of software called Forscan (with extended licence lasting for 2 months at a time). You then need a modified ELM327 cable to be able to use more features (including injector coding). Many people on here recommended this modified ELM327 obd2 scanner from Tunnelrat.

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Ye i only changed them as i had them there, didnt go out of my way to buy them. The wiring and connections are all good, was one of the first things i checked. Ok great i will have a look at that thanks!

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have you changed the timing belt on the new engine? 

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the 1.6 ecoboost has had a few changes over the years, perhaps your pcm and new engine are not compatable. was engine from a simular age focus? 

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The engine came out of a Fiesta ST a year younger. I will look into the PCM like you just said

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