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Steve Bull

Bigger Injectors

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I have your base map for the 1uzfe. My engine has a  turbo so we are fitting 1050cc injectors. As these are loads bigger than standard what the easyest way to get the engine to  test run and tick over. 

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The master fuel number is the one you should change.  Your injectors are about 4X larger than standard so if you reduce the master fuel to about 1/4 of the original number you will be in the ball park.  If it is say 24mS now, change it to 6mS.

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Thanks for that. I have put  "4 ms", the lowest value for master fuel, but its not low enough as the AFR is at 10. If i put in minus value in the "master fuel trim " will that reduce it further.

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