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Message: <blockquote data-quote="speed2horizon" data-source="post: 4219813" data-attributes="member: 30831">[/COLOR]Haha... No noob in automotive... It's either u know it now or later...510cc..? Good for ur set up all the way to 1.8 bars... So, how much u planning to boost..?And OBD is On board diagnosis. The OBD 2 ECU will have the intelligent to learn about ur A/F and if piggyback(some, not all) installed, the ECU will tends to overwrite the auxillary mapping of the piggy. Example, Airtrek, EVO 789. So, owner will need to unplug the battery to reset the ECU once a while to reset it back to 0 where no overwriting by the ECU was done.but still, it will suffer from the low end rich. Cause the same signal is going to be sent to the injectors. And per duty cycle, the fuel injection for 510cc and 390cc is definitely not same... And E-manage is only able to up/down 20% of the original ECU mapping.Which is why, i opt for remapping my ECU in order to have full control of my injectors.It's not recommended. cause if your injectors are running on 100% duty cycle, there are possibility that the injector can get over heated and stall the engine...It happens to one of my friend with VTEC Turbo with stock injector... The car stall in every 25mins full boost. Then he reduce boost and currently injectors running 80% duty cycle and everything is fine.And another risk is... What if the boost spikes for no reason... And ur injector is already running 100%. And, there is no allowance to increase fuel injection...</blockquote>

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