ef si gsr swap I start my car but it wont idle on its own I step on it n it stays on only if I keep my foot on the gas. other then that car will shut down.
have check engine light checked my codes comes up 3 which is MAP SENSOR.
replaced map sensor car still does the same thing. any ideas on what it could be? thanks in advance ..

 

Voltage and Ohm test the MAP sensor wires.

Also check whether any sensor connectors are swapped.