AOA
Can anyone please guide that what voltage reading should be obtained for 3 wire IACV?? While engine on and also KOEOff
I am having hunting idle of my car between 1500 RPM - 2500 RPM due to IACV its confirmed.
I did Voltage tests
1- KOEOff and got battery volts on middle wire and the other 2 wires i got continuity with battery negative terminal while the connector was not connected to solenoid.
2- Now connector connected with solenoid did same test while engine running idle again got battery volts on middle wire and on other 2 wires i am getting 7.5 volts on both wires.
3- while engine on and running when i unscrewed the solenoid and remove it from IACV without disconnecting the connector from solenoid my idle becomes totally normal.
So i want to know if the 12 volts are fine on middle wire and 7.5 volts on other wire while engine running are also perfect?
Because i think i have some issue with my wiring harness or ECU because when took off the solenoid the idle got perfect and smooth. So there must be some issue some kind off short circuit or maybe bad ECU which is sending abnormal signal/volts to IACV.
Please expert assistance required badly. Getting very bad mileage from my civic.