What makes using OBD2 system, so much better than OBD1

The obd2 system is not nearly as complicated as most guys seem to think. If you’ve done a megasquirt setup already it will be no big deal to get one running. Get a factory service manual for a dodge truck. I used a 2001 takeout 5.9 and with the engine harness and PDC it was 5 fuses and 3 relays to get it to run standalone. Once you put power to the pdc all those systems are powered and it’s as easy as wiring an ignition switch and a starter button. The service manual had great wiring diagrams. The jtec ecu is limited but can be tuned with an SCT handheld, contact FlyinRyan performance he’s one of the best. Also, the 46re is controlled by the ecu in all obd2 systems. At my last check a stand-alone controller has not been perfected yet. I’ve been looking for a while. On the megasquirt website there is an instruction pdf on how to piggyback a megasquirt over the jtec and use megasquirt for fuel/ignition and jtec for trans control. Currently this is what I am doing but it’s all going to change.