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sanad maghaireh

Atom on civic

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hi everybody
i have honda civic 1.7 engine , i use Atom ecu as a piggyback , and its running right , but the RPM gauge and A\C still not working , can Atom alone make RPM and A\C work Of non-interference the OEM ecu ?   or there are any setup for make the OEM ecu help the Atom ?

thank you 

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Hello,

I believe you will need to install a pullup resistor for the Atom to do tacho output. This is because the factory ECU contains the pull-up resistor instead of the tacho gauge itself. Try installing a 1K resistor between +5V and the Atoms Aux output being used for tacho.

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