Hi guys, I'm selling my dart soon so I have some questions about getting smog ready. I had an aftermarket performance flashed ECU installed and I've already put the stock one back in. I thought driving 70 miles would have been enough but it failed its first smog test because the ECU still had open emmission monitors. Does anyone have a recommended drive patern for the monitors to close? One thing I've noticed too is when the key is on ignition (with the engine still off) the dash runs through its checks and I've always seen the CEL (check engine light) on untill I start my engine but I've noticed it'll start flashing after about 10 seconds. When I start the engine the CEL goes away, could it be an indication that some sensor check has faild but the car runs just fine or an indicatoe that it's monitors are still reading?