Hi all...i figure i could find others who have done this. Customers 08 civic i power probed the a/c compressor to see if it would engage. It did. So i moved o to power the ac pressure switch. Well i added power to wrong pin...car shut off and i have no blown fuses. So im hoping its a blown relay or something. I was testing simply because she complained of warm ac so i first evac'd the system then charged it vut compressor wasnt turning. Then i ended up with this mess. Car cranks but wont start. Any help or know what coulda popped please fill me in. Thanks!

 

Did you ever figure this out? I did the same thing today

 

has anyone found the cause of No start after power probing pressure switch ?

 

You probably killed the PCM as the pressure switch isn't a switch but a 5 volt sensor for pressure wired directly to the PCM.