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The KA MAFS, need to be rewired and NO the MAFS will not go above 7Volts. Nothing on your car pretty much should god 7 VOLTs. Anything that high you run the risk of burning out your ECU. Because the MAFS is directly connected to the ECU, you cross those wires, your ecu is gone. I have don't it, sparked the MAFS wire, ECU was gone. Idle should not be 1.5, unless you have a Z32 MAFS, highest flow you can get is 5V. I tune my maps by tapping the Hot Airflow Input. I ran my SR20DET at 14PSI (with proper upgrades) and NEVER got above 5V on the stocks MAFS, so something is wrong. Get a new mafs.
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