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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.

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Old 01-06-2010, 08:54 PM   #1
13bboy
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Default fuel problem need help

when i baught my fc it had a hks programed fuel system computer [piggyback] aswell as the stock computer but i didnt realise the hks wasent pluged in,the harness was installed tho. I had 2 get the engine rebuilt for other reasons but the mechanic could not tune the rebuilt engine with just the stock computer could this b because the stock computer has been remaped or something to suit the hks computer






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Old 01-06-2010, 11:32 PM   #2
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Ars you refering to the F-CON? you should be able to use it as a piggyback with your stock ECU. The stock computer should not need to be remapped with this piggyback system. IIRC the F-CON uses a different 3 bar map sensor than the stock unit.
Could you be more specific on what your mechanic is not able to tune?
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Old 01-07-2010, 12:24 AM   #3
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sorry, fuel and air mixture im pretty sure!!, and ur correct [F-CON]

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