When I turn the ignition key to "on" before turning to start, my fuel mixture control solenoid doesnt click and doesnt want to start. my 88 Monte does click. If I remove the Olds carb and connect it to the Monte's MCS plug, it clicks. I have replaced the Hurst brain box ECM with another ECM and it still doesnt click on the Hurst engine. Can anybody tell me if their MCS clicks when ignition turns to ON position. My Hurst has not ran in at least 4 years and I cant remember if it is supposed to click.