2nd Generation Specific 1986-1992 Discussion

What Conditions Cause Secondary Injectors

Old 05-04-2004, 06:13 PM
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What conditions cause secondary injectors to turn on?



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rmaiersg is offline  
Old 05-04-2004, 07:30 PM
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they activate when a certain air pressure is reached. like lets say .5 psi over ambient air pressure. I have no Idea what pressure they activate at but thats just a way to explain it. with a standalone you can tell them when to come on..like at 0 manifold pressure or 1psi etc. that exp works with turbo engines. N/A i'm not sure myself.
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Old 05-04-2004, 07:48 PM
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stock they turn on at 3800, or 3500 if over 1 psI
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Old 05-04-2004, 08:05 PM
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Where did you get 3500?



From Henrik (rtek ecu designer):





For the stocker, secondaries will come on:

- above 3800 rpm with more than atmospheric pressure in the manifold (ie boost but relative to the atmospheric pressure sensor reading).

- above 5600 rpm regardless of boost or not
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