Year/Model: 2005 Mustang GT (4.6 3V)
Mods: Steeda CAI, BBK throttle body, Borla ATAK exhaust, high-flow cats, Lito tune, misc suspension upgrades
Problem:
A few weeks ago, I suddenly got P0135, P0141, P0155, P0161 (all 4 O₂ heater circuits) and P0443 (purge valve) at the same time. My A/C also...