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You would also need to replace the ignition switch with a non HISS to work with that ECM and you will need to adapt the wiring on the switch as the connector plugs are different. Also you need to know that you can't have chrome trim on the ignition key surround on HISS models as the chrome will prevent the engine starting.
Back to the original ECM, did you initialize it when you replaced the sensor? That means disconnecting the battery for a few seconds, reconnecting it and starting rhe engine and letting it run without touching the throttle until it warms up.
You would also need to replace the ignition switch with a non HISS to work with that ECM and you will need to adapt the wiring on the switch as the connector plugs are different. Also you need to know that you can't have chrome trim on the ignition key surround on HISS models as the chrome will prevent the engine starting.
Back to the original ECM, did you initialize it when you replaced the sensor? That means disconnecting the battery for a few seconds, reconnecting it and starting rhe engine and letting it run without touching the throttle until it warms up.
