Engine Management and Tuning Crome, NepTune, Hondata, AEM, MOTEC

550cc injectors works like 350cc

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Old Aug 20, 2009 | 02:32 PM
  #1  
Wheelman-CZ's Avatar
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From: Lafayette, LA
Default 550cc injectors works like 350cc

Hello!
I have just finished my project.. boosted D16Z6 (vitaras, eagles etc....) I will post some pics and some info soon.
But I have a little problem with my injectors.

I have put RC 550cc into it, but car wont start. I seen on wideband that it is too lean, so I changed the injector size in Crome to 450 and it was better, but still lean. At the finish, I have seet 350cc as a new size of the injectors and it works good.

Now I am dealing with problem that the injectors is good only to some 10 PSI and then the duty cycle is more than 100%.

Whats wrong or what can I do? Rise a fuel pressure?

The fuel pump and the fuel regulator is stock.
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Old Aug 20, 2009 | 04:50 PM
  #2  
bigD's Avatar
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From: cc,tx, USA
Default Re: 550cc injectors works like 350cc

did you change the battery offset for your injectors?
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Old Aug 20, 2009 | 06:49 PM
  #3  
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From: Tampa, FL
Default Re: 550cc injectors works like 350cc

Are your injectors low or high impedance ?
If they are low impedance are you running a resistor box ?
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