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There is no point in running bigger injectors on a stock engine, the ECU will bring the injector pulse width down using the feedback from the O2 sensor, if the fuel trims don't have enough range then it will just run pig rich. The stock injectors have enough overhead to cope with some tuning, the 1.6 injectors are required with the 1.6 engine because it has a different torque curve and you need to 'cheat' the ECU a little because the mapping is wrong.
Rhinoman wrote: There is no point in running bigger injectors on a stock engine, the ECU will bring the injector pulse width down using the feedback from the O2 sensor, if the fuel trims don't have enough range then it will just run pig rich. The stock injectors have enough overhead to cope with some tuning, the 1.6 injectors are required with the 1.6 engine because it has a different torque curve and you need to 'cheat' the ECU a little because the mapping is wrong.
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