yeah, afc is a must with the injectors and 2g mas.

But why would the car just randomly start mis-firing after say 2-3 months? That’s why I’m lead to believe it’s not due to improper tuning.

With the 2g mas unplugged the car hardly runs any differently. The idle just goes up slightly. And he said he swapped it out with a 1g mas. But since 1g mas with 550cc's alone would make it run like shit that would be hard to eliminate that problem using just a 1g mas. Maybe try stock 450cc’s 1g mas and see where it goes from there.


And are you 100% positive you are not burnning coolant? the car was alittle smokey a compression test will rule out anything like that.