So here’s some basic things that will keep an engine from starting. And this goes for others besides just Acura. Check the ohms on the crankshaft position sensor, camshaft sensor, knock sensor. If either the cam or crankshaft sensor isn’t reading the computer won’t allow the engine to run because it can’t see where either one of those two are in relation to te timing marks so the engine doesn’t self destruct. Check the fuel pump relay and fuse, ignition fuse and relay. Make sure that you’re getting power to the ignition coils and also check to see if the small, signal wire going to the starter is getting 12 volts when you turn the key. Also another thing to check is the engine ground wires going to te body. The starter has to have a good ground for it to work. You can’t just toss 12 positive to it and it does it’s job.

You can use a multimeter to check the resistance “ohms” of each one of these sensors to see if it’s out of tollerance. If everything checks out then you might want to have your engine immobilizer tested to see if it’s making a good connection with the key.