89 5.0 Mustang

will that scan everything not just engine balance or is that wat i want to do?

FivePointOhh

it does koer, koeo and engine balance. its just 3 seperate tests

NVS Motorsports

Double check your mass air flow sensor, Make sure it is plugged in securely and that the sensor wire does not have any dirt or debris on it. A bad reading from the MAF can cause many problems including no start and poor acceleration