Please help. Thinking about purchasing this product, as my Mustang lately has been running rough at start up. Also, when the car is warmed up, it seems to have a rough spot in the idle. I've done basic engine mods such as Timing advance, MSD coil, K&N filter, BBK 110 LPH fuel pump, underdrive pullies, Motorsport headers, exhaust, gears etc. I've even replaced the IAC and Coolant temp sensor which is zipped tied to fuel rail. New timing chain and water pump. Engine has 120K original miles. Not sure if these mods have worn out the Duralast TFI model? which I installed summer of 2012. Will this part help? Thank you
This could help you out on your concern, I would also check the readings on your TPS sensor as well. If you replaced the TFI in 2012 it may have went out by now but I could not guarantee you this. This will be a upgrade over that unit as well and wouldn't hurt you to install this as a upgrade regardless.