good question.....we has been experience before.it will be depend to the installer how there do it. but the correct way is arm the alarm then the engine still running after just switch off by the timer.
Anyone knows the differences between these 2 BOVs? I'm using Blackhead but the sound is not like SSQV or those type of hgh pitch sound. Mine is more to Psshhhh... type of BOV. Damn boring now... And, the...